well, it is the same with any "crutch"( <----what a bad choice of word) in any game, if you use it, it hinders some performance, saying use combat trim and have less advantage, use manual trim and have more...........
same with stall limiter..no?
this is how I view combat trim anyhow
also, I am not putting anyone down for using combat trim, some may get better results from it than me, but IMHO it hurts you more than it helps..........
also to add it works great for some, but not for me...geez!