Same here our whole club burns the same fuel in either 2 or 4
storkes.. Well, we all use the same fuel since the club buys the
fuel in bulk and sells to the members at a two dollar savings..
We all use PowerMaster 15/18..
I like 4 strokes, for the low end torgue, less fuel consumption
and the sound.. But they do vibrate a little more, But should be
no problem... Altho I'm still breaking mufflers/pipe on my mag
91 on my 4*60... But I sent it in to be checked since the plane
looks sound.. Magnum also sent me a free muffler assy. when
I lost the last pipe.. And most at the field keeps telling me Mag.
will just send me a new engine??? I'll find out soon...