I ran one on my sledge. It has tons of power... It likes to run in the higher RPM's, so the bigest prop I could run was a 11.5 x 4.. It transitioned okay... Don't ever run anything more than 5% nitro.

For my money.... I'd go with the Webra .50.... Just out performs everything else out there... and it a full ounce lighter than most... ounce and a half less that the OS .50...