RE: TT .61 Pro full length Mac's Pipe
That's not bad rpm! I'm impressed with my OS 55ax though. With a better than stock (tower hobbies .46 $15 pipe) non-tuned pipe she turns an APC 10x8 @ 14,250 on 10% Omega. Nice to see the .61 turning large RPM, though for the weight trade-off I'm happy with the 55ax.