I've seen videos like this about using chain lightning to make enemies pop into the air on the killing blow.

http://www.youtube.com/watch?v=nRR-MbCH7B8

My question is about the disintegration perk. If you have the perk it will disintegrate the enemy when low on health. does that mean if you have the perk you can never make them pop into the air again? I have a current character who uses lightning magic and might not take the disintegrate perk because skeet looting looks like too much fun.