Well, I'll chime in here,, a bud needed to free up some space so I gave him $265 for a great planes big stick with a saito .65 and a H9 with an OS .46ax on it...good deal? Yeah, but I prefer the scream of a good .049 on a half pound plane...anyway I dont like the 4 stroke, it runs and starts great,,just doesnt sound right,,he had it set up with wild throws, I barely got it back on the ground once I took off...which only took about 10 feet!! just not my favorite plane....now a Herr Extra .074 with an OS .15la on it,,thats a sweet plane..very popular over in the 1/2a forum...probably sell the stick's and both engines one of these days....Rog