Certain poses may knock the CUA's off a little bit, or it may possibly be the smoothing setting in your main vam, i neglected to mention i keep mine at 0 or 1, and then use tessellation plugin by huntingsuccubus to smooth models edges. Worse comes to worse and it's neither of those, you can readjust them and then save a new CUAmanager preset ( i included one, but you can make a new one) :) Hope that helps!