I'm running a DL50 in my 77" Edge with great results but with a few hiccups too. For example, in trying to get rid of the burble that some posters are discussing here, I got to lean out my engine where all missing was gone, I thought, man you nailed it! Things were OK for a couple of months.
But under certain conditions the engine seemed a bit hesitant in the air, especially when doing inverted harriers and very tight loops from inverted. Well, after doing this for awhile, the engine quit. In fact I had about 6 deadstick landings in about 1 month. I could not pinpoint the exact weather condition prevailing nor could I associate it with any particular batch of gas used.
Th only cure that has worked was to open the low speed needle about 1/4 turn from where it was. Now the engine went back to burbling in the low/mid range but it's entirely trustworthy. It's a real shame as I feel disappointed at not being able to have the best of both worlds which is reliability and no burbling.