question about spell positions

ok, i was trying to follow the whole spell position thing, where you would change the position by editing the txt files and putting in map, and understand that. i also heard that doing this makes the game desync (also heard that perhaps this only happens when using custom units). I really want to customize the slots that the spells go in for my rpg so the spells suit the units without them bumping each other off or anything.

So what was the final word on this, if there was one? I'm willing to just go ahead and edit the existing heroes for my new heroes and some of the existing units/creeps rather than making new ones if this will allow me to use the custom positions. Will it work?

anyone?

edit: still noone?

still noone?