My CFII had a really nice knee board that seem to work really well for him. It was about 12x7. The clip on the right side of the board was at the top, and there was a clip on the left side of the board. It was nice because you could put your approach plate on the left side of the clip board and a pad of papper on the right side. You could flip it around if your left handed. He doesnt remember where he bought his. If anyone has any idea where to find one i would appriciate it. Thanks