ST 3000, and all Super Tigres, seem to take a very long time to break-in. I usually run mine rich on the bench for about a gallon of regular fuel. Then I fly with regular fuel for another gallon before switching to a low oil fuel. The Omega Super T fuel is about 12% oil and 10% nitro. 5% works OK, too.

Run your engine where it leaves a smoke trail at the first of the flight. It should lose the trail by half tank. If you run them like this, they'll last nearly forever. You should only have to re-set your needle valve if the humidity goes way up, like a foggy day. I usually just accept a slightly rich run. I mean, the needle should stay set for years! Get it right and don't mess with it.

I like an 18-10 prop. The 3000 will turn a 20-10, but the needle gets critical, at least on mine. I have had 6 of them, 1-2500, 4-3000 & 1-3250. The 20-10 works on the 3250. The 3000 & 3250 get max hp at 7900 rpm, so prop for 6800-7200 on the ground. It is a lugger.

It should also start in 1 flip, 2 max.