Perhaps... but even if they are travelling at FTL speeds in their fights... *WHAT* FTL speed? Remember... when Furiza blew up Namekusei, his plan was to prevent Goku from breathing. The logical conclusion is that habitable planets are rare enough that he'd suffocate before he reached one, even if he headed to one at full speed.
![[Image: Aleh.jpg]](http://www.animecubed.com/billy/pics/sigs/Aleh.jpg)