Just left the LHS and they finally got in a Xoar 15x6 prop. I picked one up and will install it tonight when I get home. I hope it will spin in the 8500 range. That shold give me the pull I am hoping for from this little engine. I am not really sure about the power it is putting out. It seems a little less than my old ASP 91 but we'll find out this weekend.