Thanks for the reply, especially the info on rig tension. I'll try leaning on it a bit more. Jib halyard tension was something I played with a lot when racing keel boats.
I'm really curious about the gennaker option too. My biggest concern, besides the price, is additional rigging time. I've managed to get my setup time under an hour, and wouldn't want to add much more back.
I'm tempted to play around with some sort of traveler. It would be nice to be able to get the boom closer to the center line without sheeting in so hard.