Nope haven't used the zeppelin yet, I'm trying to improve my over all pipe technique before tackling that bad boy. I'm assuming it might take a bit of finesse to use it right. However when I do use it the first time, I'm going to write a detailed post about the experience, kind of a step by step, and a review.
The Macqueen is a surprisingly good smoker. It's been my go-to pipe at home for a few weeks now. I bought the cherrywood model for the "challenge" I guess. When it arrived, I coated the inside bowl with a thin layer of strawberry jam and some pulverized baccy that I cooked in a pan 'till it dried. After a week of dry time it smokes beautifully and is developing a nice cake. A pain to clean, but a pleasure to smoke!