I do think it can be hand waved with that comparison to soundwaves undetectable by the human ear, but able to be read by a machine(or however Bussani's explanation goes), but still it could've been explained better.
Unfortunately Toriyama is the kind of writer, who keeps exposition to a minimum(in some cases it's a good thing, in others not so much).
2) Weighted clothing lowering one's battle power doesn't seem very logical to me either, when scouters are supposed to work the way they do.
3) The lack of (100%) consistency in Buu's transformations, particularly how he acquired Piccolo's pants all of a sudden after the kids were ripped out. Either he gets the pants from every being he absorbs or Piccolo was some dumb special case.
I just ignore it completely. I also think his South Kaioshin variant should have had SK's clothes, but Buu might have blasted the clothes off him or SK could have ripped it off himself. It's also annoying that he didn't have South Kaioshin's hands, instead keeping his normal ones.
4) Super Saiyan fetus Pan
I also dislike that Toriyama didn't do more with Krillin and Gohan's 'mind battle' and tried to explain it.
