310 mains sound perfect with the lid off, is yours? Im having the same problem, im at 320 mains, 30 pilot (going down to 27.5) and im having a bog in the mid range. I put on a coolhead with 21cc domes and that fixed it at 80 degrees, its going to be in the 90's next week. Also, I was talking to sandtrax in tulsa, and I told him my mods and everything and he said he would leave the pilot stock and put a dynojet needle in there. You might try leaning out the needle clip position.