I use a Snap On motorcycle compression tester. I can do the testing with the tank on. Wide open throttle. ..kick until the needle stops...usually 20 or more kicks.
Its very well possible that jetting was off...but I did adjust needles and had a professional tuner set up carb....I just like the overall power delivery of the stockers better
I ran the single and went back to dual stockers. From my experience, the single fell on its face in the top end. Bottom and mid range were ok...but I did not like top end performance......
I have PT mids and at sea level I run 310 mains 30 pilots with pod air filters 3rd clip in needle.......I wrapped some exhaust heat tape around the rad hose to prevent it from melting...good luck
I live in wa and stock banshees are going for $1500....full blown out cheeta cubs long travel suspension are going for around $4000.......if your willing to pay shipping I'll shop for a sweet shee for ya!