I think a big mistake is being made here... your mostly trying to change to many things at once. The first thing that needs to be done is list off the effects
that Snape loving Harry's mom had in the first place. Otherwise this is just lets make 'Petunia magic Wheee!!!' which is bound to fail as an
exercise... your changing to much at once andspinning wildly off into C and D fanfic range. No the first thing to do is see what the changes in the plot would
be from changing this small event. Granted it has big effects on the timeline for Harry and all.... but one minor change.... then examine thechanges without a
bagillion factors mudding things up.
Why (motivations) for what Snape does can't be without what he does. The How he does it will be effected by what he does in the first place. Take one
feature that would change and argue the efftects on the timeline. Then take another feature and tell us what effect that one change would have, independant of
the previous change and the next one alone also. Trying to change everything willy-nilly at once will make a trainwreck at best. Establish What changes and
Then tell us How it changes things... the Whys are effects of the other two things. Once we have a relatively stable baseline... Then we can make super
changes...
For example,, Harry probably wouldn't get as much flack as he does in the cannon... James didn't swipe his girl... he was still a jerk, but Snape
isn't going to have as much hate for Harry specifically. Son of a jerk, but not the jerk who swiped 'his' woman. Changing nothing else, but
Snapes affectional slant... he is going to do less to go after Voldy as he has much less of a revenge motive. If Snape is a stalker here, he'll actually
buddy with Harry: to get news of his love.
If we start off with a major change like giving Petunia magic.... it guts the series like a zombie fish. With magic she won't hate Harry near as much...
as she wouldn't have met Vernon and spent a decade or so learning to hate the non 'Normal'. In the cannon Vernon has an idea of normal... which
include beating the genetics (magic) out of people as possible. Locking small children in spider filled closet crawlspace under the stairs and keeping the kid
as a slave/house elf. Being morbidly obese and having a rage disorder... or dealing with problems with things not normal by running away from your own house
and hiding in a leaky shack in the middle of nowhere. I'm not even counting the 'normal' way he raises his own son.
So guys... establish what your change would have as an effect with the smallest change possible... then start in with the bigger changes... rewriting
Petunia's character entirely is all about an original charicter named Pentunia, and not about characters I can recognize.
Seriously, the major desision that this could result in without changing the characters completely is have Snape being the wizard watcher on the street and not
the kindly, old woman type that was there. Snape could end up as Harry/Dudly's science teacher at school and having a strict tutor for Dudly alone would
give him more of a moral spin. When you get down to it... Snape is the kind of teacher that Pink Floyd was complaining about in 'The Wall'. This
could also easily mean that Snape stalking Petunia (plus studiing science as a method of fitting in with those not magic, like Petunia) and not radiating venom
at James for stealing 'his' girl.... means he never joins the Death Eaters... which would screw them over as they'd have a lot less access to
potions and ritual components. Which will increase their attrition rate a lot, after all the Death Eaters are psycho nobels pillaging and raping their way
around and few are shwn to have many useful skills as anything but grunts. I'm willing to bet that Snape made potions that prevented lots of Death Eaters
from dieing long enough to plead mind control in court.
that Snape loving Harry's mom had in the first place. Otherwise this is just lets make 'Petunia magic Wheee!!!' which is bound to fail as an
exercise... your changing to much at once andspinning wildly off into C and D fanfic range. No the first thing to do is see what the changes in the plot would
be from changing this small event. Granted it has big effects on the timeline for Harry and all.... but one minor change.... then examine thechanges without a
bagillion factors mudding things up.
Why (motivations) for what Snape does can't be without what he does. The How he does it will be effected by what he does in the first place. Take one
feature that would change and argue the efftects on the timeline. Then take another feature and tell us what effect that one change would have, independant of
the previous change and the next one alone also. Trying to change everything willy-nilly at once will make a trainwreck at best. Establish What changes and
Then tell us How it changes things... the Whys are effects of the other two things. Once we have a relatively stable baseline... Then we can make super
changes...
For example,, Harry probably wouldn't get as much flack as he does in the cannon... James didn't swipe his girl... he was still a jerk, but Snape
isn't going to have as much hate for Harry specifically. Son of a jerk, but not the jerk who swiped 'his' woman. Changing nothing else, but
Snapes affectional slant... he is going to do less to go after Voldy as he has much less of a revenge motive. If Snape is a stalker here, he'll actually
buddy with Harry: to get news of his love.
If we start off with a major change like giving Petunia magic.... it guts the series like a zombie fish. With magic she won't hate Harry near as much...
as she wouldn't have met Vernon and spent a decade or so learning to hate the non 'Normal'. In the cannon Vernon has an idea of normal... which
include beating the genetics (magic) out of people as possible. Locking small children in spider filled closet crawlspace under the stairs and keeping the kid
as a slave/house elf. Being morbidly obese and having a rage disorder... or dealing with problems with things not normal by running away from your own house
and hiding in a leaky shack in the middle of nowhere. I'm not even counting the 'normal' way he raises his own son.
So guys... establish what your change would have as an effect with the smallest change possible... then start in with the bigger changes... rewriting
Petunia's character entirely is all about an original charicter named Pentunia, and not about characters I can recognize.
Seriously, the major desision that this could result in without changing the characters completely is have Snape being the wizard watcher on the street and not
the kindly, old woman type that was there. Snape could end up as Harry/Dudly's science teacher at school and having a strict tutor for Dudly alone would
give him more of a moral spin. When you get down to it... Snape is the kind of teacher that Pink Floyd was complaining about in 'The Wall'. This
could also easily mean that Snape stalking Petunia (plus studiing science as a method of fitting in with those not magic, like Petunia) and not radiating venom
at James for stealing 'his' girl.... means he never joins the Death Eaters... which would screw them over as they'd have a lot less access to
potions and ritual components. Which will increase their attrition rate a lot, after all the Death Eaters are psycho nobels pillaging and raping their way
around and few are shwn to have many useful skills as anything but grunts. I'm willing to bet that Snape made potions that prevented lots of Death Eaters
from dieing long enough to plead mind control in court.