Hahaha, your funny! I think spool up my be slower, but once she cranks up, the top end speed should improve. This prop reminds me of the graupner's, wide right to the tips where all your powerful air flow comes from! The Saito 1.80 is 29cc, and four stroke glow fuel engines do produce more torque than an equivalent gas, so maybe I can run this prop ok. Send me pic's of Nall if you want. [email protected]. Have fun over there buddy;-)