ORIGINAL: zoner

I have an OS FS-91SII-P that I am having problems setting the high speed needle valve. It seems to run and fly well at 1 1/4 turns out and has a good smoke trail, but if I do a pinch test, seems lean. And according to the original setting of the needle valve and advice from product support seems to be on the lean side. Any advice? Also, there seems to be a lot of raw fuel on the engine and under the cowl. I have tried richening the engine and it gets extremely sluggish and wants to pull down in RPM's and eventually backfires, spinning the prop loose. The engine has around a gallon of fuel through it, and at the leaner settings, idle's fine and seems to fly well, I just don't want to run it too lean. Thanks for any advice!