From my limited experience with both, champagnes seem to have a lot less problems with the wobble than a spider does. Haven't had a spider yet that didn't show at least some wobble, but I never even knew champagnes had it until someone told me, and that was after having one for several months. Neither her nor the champagne pastel daughter she produced this year have ever really given me any signs of the wobble. But this is just a handful of sliders and two champagnes that I've dealt with, so take it for what it is.