@Frederick McGuire I didn't start medicating with cannabis until 2 1/2 years ago give or take a couple of months. I was cannabis free for many years. In my earlier dayz it was recreational. ZIG ZAGS were the main method. Bong's I could never handle and would have coughing fits. The smaller mouth pieces of today's glass pieces have made a more comfortable experience. Bong style mouth pieces take all the pleasure of cannabis away in my mind. I look for a water piece I can attach a mouth piece of my liking. The thing I like about the GBD concept is the pieces are modular! I'm happy with my vaporizers however in 2014 I plan to develop my glass method. I have followed your post the last couple of years and at first I was puzzled by your glass collection. It's taken me some time to understand the attraction. Glass is more important than any vaporizer. CANNABIS is still the "HOLY GRAIL"! It just taste better with glass! The effect is quite pleasant as well! 18mm inlet I prefer. The 14mm inlet is way too much drag for me. The 14mm GonG I like however I like 18mm as well. So I have both! I keep breaking glass so this last one I bought should be more durable for me!