I tried this at the Kush Expo in LA a couple of months back.
I feel like searching for the perfect device for PG has become somewhat of a Holy Grail quest for me. I've tried the CE4 carto, Bud atty, 2.4 D9 cart at 3.7v, 7.4v Herc, and the Dart. So far, I've had the best results with the Dart...