Well had my first flight with them and it was WAY too windy to find out how they work. 16+ MPH winds make that little plane do a dance. I tried slowing it down to see if it would Harrier, but the winds were just too gusty. With the tail wind and 3/4 throttle it SCREAMED by me like a tiger with its tail on fire. Going full throttle into the wind though, you could really see it struggle. Those wings were dancing!
On that 150, unless you prop it correctly, you will never get it to run right. Too small a prop and you dont have the mass for a decent idle, and can over rev it on the high end. I run a 15x6 on a 100, and 17 x 6 on the 125. YES OF I do have a 125!!! It flies my Stang quite well thankyouverymuch. I picked it up at a swap meet dirt cheap, and thought I was going to have to fiddle with it. Nope, I just adjusted the valves when I first got it, it sat a year on the nose of the 51, and 3 seconds on the starter and it was purring. Didn't have to touch it.