I fly mine with an OS 1.08 with std muffler. I have 3 servos in the tail and the c.g. is perfect. It's got about 20 flights in it now with a 14x8 prop, will try a 14x10 when it's nicely run-in. Speed? Seems fast for the first few flights, but you'll get used to it and want some more. Makes a beautiful sound on dives with this prop, kinda like a composite sailplane.

It handles real well both in the air and on the ground - you'll be surprised, a very easy plane to land. if you're taking off grass or soft/uneven ground, don;t bother with the wheels pants unless you replace the L/G wires - they're way too soft. My tail wheel wire broke as well.

Hope this helps.