Thanks, Zenith - I was getting aiment (entity you are aiming at?) confused with owner.
I rather assumed something on movetype_follow would move towards its owner.
Right atm I use either FM or Engine, whichever function has a less stupid name (so usually Engine :-P) but before getting my plugin approved I'll probably switch it all to FM.
Maybe. If people stop whining about Engine.
EDIT: After testing (purely console - takes a lot of log_amx's ;-) ) it seems that movetype_follow doesn't make it "move" at all. It teleports.
I'm really looking for actual following, rather than attaching, so I'll use tasks + maths to point towards it, I think.
Thanks again, everyone. Alka can have thanks too if he stops using ! marks everywhere :-D