I'm putting the DP 1.20 Ultimate together with the YS 140 DZ. Most of the 3D ARF's I see in a .40 size need something much bigger than a 46 (Funtana with a Saito 100, Magic extra with at least a Saito 72, etc.) With this DZ I'm going to be going through some fuel so I thought that in the future before I go broke with fuel I'll trade down to some large 2 stroke, put a diesel head on it and at least get twice the time/oz fuel. Looks like no one has tried this though...