If funds permit, I too would go with a 4-stroke. Take your pick of brands: OS, Saito, Magnum (or YS if that check from Ed McMahan comes in the mail). The larger prop will look better, and the sound will make a believer of you. If you stick with a 2-stroke, a .91 will let you swing a bigger prop too, and give you more power than you could ever need. It comes down to how much you can justify spending. Consider the cost of a pitts style muffler to match the 2-stroke, and the price is similar to the cost of a reasonably priced 4-stroke. The Super Tigre .75 is another good choice if you like the 2-strokes as you can use the Top-Flite in cowl muffler/header (another 20 for muffler and 15 for header). If you use the Super Tigre .90, you can use the Bisson or Slimline pitts.

Pilgrim