My Quest To 2HKO Skelegons!

Yeah, that has to do with accumulating little rounding/subtracting errors. Lots of calculations + floating point numbers = bleh. In actuality the chances of 16/17/18 hitting that are small enough that it doesn't matter. 1/2/3 hitting shouldn't be inaccurate though, there's relatively little dividing by large numbers..
At this point I could care less anyway. I made that quite a long ago and it's not used enough for me to bother trying to fix/change.