I've never had any 4-strokes, but I have seen them at the field. I just never got the urge to spend all the money. Anyway, I have seen several Magnum .90 4-strokes along with several O.S. .90's and they all seemed to run good. If I were in the market for a 4-stroke in that size range, I would take a serious look at them. I would probably start by doing a search in the "engines" forum.

Just my 2 cents...

-Bob George