I am not jumping to conclusions.... I am not in the market for an engine of this type, so it doesnt matter to me either way... I am just making responses to the numbers being posted.

Even at 6800 with a Xoar 22x8 it's not a total powerhouse. DA and Brillelli 50 turn that same prop at 7000+ new.

Like I said I am not knocking the product... your numbers are more inline with a 50cc engine... Bob's numbers are low.. no way around that.