That is the comprimise I am looking at I think, lazy floating with the GX25, why can't someone see the need for a 4stroke 40cc weedeater in the same size and weight package? I will post some pics later today. I can tell you the fuse is easy to build. I built the majority of it in one day just as a side project while working on two other planes. I suppose I am looking at a 30~35cc conversion 2 stroke.