Well the subject pretty much says it all. I have an eight pound plane with a 120 size four stroke (The OS surpass III With pump). I was just wondering if anyone has had any experience with a similar setup at Mile Hi denver (Where i live). I am having a hard time getting the power I want. Its going to be a 3d Plane. I have run an APC 16x6 and the vertical is pretty good. Anyone know about the APC 16x4W? I was just browsing the APC site and came across one. I thought I would ask you guys if you had any advice before I bought one. Thanks a bunch.

Adam