Hello Minn, Nice job on the Decathalon! While I'm not a huge Decathalon fan I am a small gas engine fan. I had the oportunity to fly a freinds H9 Hellcat with a G-20ei and saw a guy last week fly a Seagull Edge 540 with a G-20ei and am impressed with those little engines. They seem to put out like a 120 size glow engine which is about what a 26cc gasser should be doing. I would love to have your opinion on the G-20ei as far as what size glow you would concider it best replaces. I currently fly a Sig Rascal 110 with an OS 1.60fx and a H9 FuntanaX 100 with an OS 1.20ax and would love to convert them both to gas so I'm not going through a bottle of Nitro a week[:@] My only fear is the potential performance loss. You should see everyones jaw drop when they see a Giant Rascal slip into a high alpha knife edge, fly the whole pattern that way then turn into a hover mid feild, pause and change direction and knife edge it back around. I'm afraid the G-20ei would lose that capability.