Ironhead, I am in almost the exact same position as you, but I have a 35mm single carb. Trying to figure out if I should go 38 or not. What type of porting do you have? I have a woods port.
Sleeper: I love the single carb for my setup. Will most likely stick with it for a while...If you have an aggressive dune port, a 35 still may be ok, but it depends how much top end you are looking for....For my setup its probably not taking any top end away, at least not much if any.