My right leg is stronger than my left (also a drummer) so I find it easier to skid with my right foot in the rear (I guess I do more pushing down than pulling up, if that makes sense...), but I've been really conscious about switching legs for skids, as I don't want to hurt one knee more than the other. I mean, I don't really want to hurt either knee at all, but you know...

But yeah, I think everybody naturally favors one leg or the other.

m.