I don't know about nmroadrunner but that's close to my elevation and mine improved with leaning. But to really throw in a wrench, a co-worker put a Booster Plug on his '22 and his is now better. He's about a 1000' lower than me but still pretty high.Spotted the unicorn rider! Although I wonder if your altitude has anything to do with it. I'm under 100ft altitude, and my Himmie was always grumpy on cold start before Booster Plug. You're over 5K ft, right?