I have a minor issue with the cabin heat control cable. Originally all we had was a ratchet detent cable. It was determined that during flight it would creep so Van's added a comb to be installed on the cable, and weaving the cable through the comb to add tension, thus eliminating the creep. It worked. The problem is that it is quite difficult to move the control now. In fact my wife cannot move it at all, so that chore defaults to me. I'm not sure if anyone else has experienced cabin heat adjustment difficulty, but I would like to have a friction lock, or push button release, so that the cable is held in place, but can be let free to be able to fine tune the cabin temperature. Before I call McFarlane and re-invent the wheel, I thought I would check with someone who may have been there and done that. Thanks....Tom