I recently put on SSTs and I'm impressed with them. The thing grunts more on the bottom than it did before and when it hits the pipe it pulls awesome. I have a stock pilot, 2 turns on the air screw, third clip pos on needle and 310 mains with no lid at sea level. At 3100ft I'd start with a 300 main with no lid, better to start rich than lean and then check the plugs. Unless you're riding in a really dusty or wet area taking off the airbox lid is a real benefit. Let me know what you come up with, like you say, not many people running SSTs and I'm curious to know