Cliff Baker:

My DLE 30 acts the same.
It wouldn't idle very long....sounded like it was loading up rich, but it would idle worse whether adjusted richer or leaner.

In a high G turn at idle it would act like it was running out of fuel and die. By adjusting metering pin lever, closer to the diaphragm, (so the diaphragm can open the meter pin easier) the symptoms have improved. (I need to fiddle with it more.) It looks to me like there isn't enough vacuum at idle to open the metering diaphragm and pin unless the lever is adjusted exactly right. Maybe the metering spring is too strong.

I had turned the carb over from its original position. Thus the G forces would tend to pull the diaphragm toward the closed position, so at idle the engine would die from fuel starvation when making the turns to a landing.

If the carb was turned the other way it would probably cause trouble when flying inverted.

Any way, try adjusting the metering pin lever to see if that will help.

Jerry