Thanks everyone for the advice, I did find out one thing... Being lazy I often just view ANIM's with DOpus....its' built-in ANIM player is much of the problem. Using ViewTek results in much smoother playback for all but one animation.
@AmigaDave: I'll try to PM you the .Anim that bogs down. It's weird though, only a few ANIMs now seem sluggish, I wonder if I did encode ALL of my .ANIM's as ANIM7....
Anyway, thanks again for all the help...