Originally Posted by
abmccray
And he made it LARGER as well, so that the mass was hard to deflect.
It also shows that they consciously avoid making blasts that will blow up the planet or aim them away from the planet (ie. lateral) constantly during their other fights. Majiin Buu wanted to eat and have fun and not blow up everything and Super Buu wanted to fight strong people, so both avoided blowing up the planet even though they were equal to or greater than Kid Buu. Kid Buu, on the other hand, who didn't care at all, immediately just tossed off a blast specifically meant to explode what it hit on impact.
I also wouldn't make SSJ Vegeta 1 at the minimum end. You have Piccolo who is probably ~Imperfect Cell level at that time roaming around as well. Android 18 probably has the raw power, but neither android showed much when it came to technique.