Don't know if you're still looking at these : P However, two things:
1. Is it possible to use the Leviathan tentacle model instead of the Spine Crawler?
2. I'm having an issues where I'm trying to stick a tentacle to a Baneling (trust me, it's friggin adorable) but the Baneling is just flying at his target and dieing as though it were the missile. I'm positive he's not using a Baneling explode-related ability or something because a) it's playing the spine crawler launch sound and b) I put the weapon object on a Colossus and it did the same thing, lol, and c) after removing the weapon object from the Baneling, he quit flying at his targets. Any ideas?