[RuDe]

I wouldn't do that.. .usually the compo is - roach/hydra/viper or swarm host/corruptor/viper or hydra ling viper.. never seen infestor/viper before but i guess if you're quick enough to learn and use more than 3 hotkeys while attacking, then you could use hydra/broodlord/viper/corruptor/infestor.. in that case, id put viper on the same hotkey as hydra coz viper would be abducting units to hydra and hydras dont have any active spells, just the attack.