I've run both engines, and while the SuperTigre is a good engine for the money it
can't hold a candle to the MVVS as far as pattern performance is concerned. The
MVVS's vertical performance has to be experienced to be really appreciated. I still
have an old school pattern ship, an Illusion with retracts which weighs 9 1/2 lbs, and
a MVVS .77 pulls it straight up as long as you keep the nose pointed that way without
even straining, it will accelerate in a vertical climb. The MVVS engines are designed to
operate on FAI fuel which has no nitro so while they aren't cheap to purchase they are
economical to operate. I run YS 4-strokes in my pattern ships now but if I decided to
build a 2-stroke ship without a doubt it would have a MVVS engine. The best only costs
a little more.

tommy s