Flying the Webra 120 on my Dave Patrick Ultimate Bipe, and when it works, it's a dream. lately, though I've had trouble after the engine gets warm. On the ground, I've tuned it to where it seems perfect. Doing a pre-flight vertical, the engine sounds fine. After a few minutes, though, it gets lean. I've had the engine cut out several times either at the top of a humpty, or when coming out of a reverse cuban. Should I just start it fatter than I otherwise would have, knowing that it will lean to a better place? I have about 18-19 flights with the engine.

thanks for any thoughts