It's weird how it took a while for me to figure out how the needles worked. It was never intuitive that the two were as fully interrelated as they are. The surprising part was that leaning one would make the other follow, basically moving the transition point around. Once this concept starts to jell, tuning became much easier.

Taking a carb apart and figuring out exactly what everything did was an eye-opener. This 30 minute task alone significantly boosted my tuning ablilities.

Jack