It's almost funny you bring up the rudder. I threw that at both instructors as well, being told by the local guy that using a rudder isn't a big deal and the other guy asked what I need a rudder for anyway. That was one of the reasons I modified the wing to begin with. I would be forced to use the rudder more so due to adverse yaw and slipping more than a wing with dihedral. I could be wrong, but I don't think so.