User blog comment:KidVegeta/Canonicity/@comment-3097771-20101130082822/@comment-2240088-20101130092055

for thelove of god he said he trained his super saiyan on yardrat he even uses a kaio-ken X20 which could tear his body apart much worse than his trained super saiyan form that doesn't put as much strain on the body as a high level kaio-ken