Wayne, I'll have my buddies tip my 29.1% Edge 540 over and see how it runs at lower throttle settings. I'll let you know the results, won't be anytime soon, got the kids this week. Maybe next week.

BTW, I'm having this same exact problem on my DA 50, it seems like people all over the place are reporting this on their gassers of all brands. I had a close call a week ago, inverted harrier, not to far above a tree line, flamed out. Got it rolled upright and floated in. Could have been so much worse. I covered the hole in the firewall and put a wind block on the diaphragm plate like DA asked me. I haven't tested the inverted harrier at idle yet (I need the field cleared to do this).

Joe