Angie, I should have an idea how they do with KDG by tomorrow with my second Nuppin' due for delivery today (probably won't be picked up until tonight). Have decided it's first build will be a simple micro/KGD to compare it to the RxW in Nuppin 1. I'm sure it will be great with KGD.
Like BH said, the AFC works perfectly. While I don't get a whistle I do hear the air going in. I'm also trying a longer wick than my first RxW Cyclone build (it's air hole is drilled to 7/64" and works well for my long lung hits). With the longer wick and the AFC am getting far more flavor rich vapor from the Nuppin' even with it's larger chamber. But I haven't done much tweaking with my RxW builds yet, so I also probably don't have it even close to optimum for that wicking material yet.
Like BH said, the AFC works perfectly. While I don't get a whistle I do hear the air going in. I'm also trying a longer wick than my first RxW Cyclone build (it's air hole is drilled to 7/64" and works well for my long lung hits). With the longer wick and the AFC am getting far more flavor rich vapor from the Nuppin' even with it's larger chamber. But I haven't done much tweaking with my RxW builds yet, so I also probably don't have it even close to optimum for that wicking material yet.