Ok Bisson is starting to sound like the best option.

Last time I checked, anyone other than a native American came from the blood of a 'foreigner' at some point in time. My ancestors came here and worked hard to create a land of opportunity and freedom for all of us. And we're never going to solve the world's problems with the attitude of Americans vs the world, so I warmly welcome the thoughts of anyone, from ANY country or region.

Does one gain or lose power switching from stock to Pitts?

Also I've heard some people, well at least one or two, has had a problem with not getting enough tank pressure using the Bisson and 120AX. I'm thinking it was an isolated case or two though.