Yesterday I found out that my Peterson system 301 is exactly the right size to hold an entire flake of OGS, most of my bowls hold about 2/3 flake. The larger bowl let me fold up a flake, sprinkle a little kindling on top, and light up. It burned all the way down with only a couple of relights. Perfect! Here's the kicker though, it kicked my butt! I have never had the nic sweats or anything like that from a pipe before. I smoke the odd cigarette, unfiltered, (smoked 30 a day for 14 years) and thought I had a pretty good tolerance, but it kicked me this time, and I thought this was a pretty easy going blend! I was reading, and may have been snorking more than I realized, and probably smoking too fast, but that bowl lasted about an hour and a half. By the end I was ready to finish because I was getting a serious nic buzz! Maybe this is why most of my pipes are on the smaller side!