First things first, I have begun to see the value in not using a belt grinder for shaping pipes. In order to get into the narrow joints and transition areas in a pipe like this, you need to be using a disc - you simply cannot do it with a contact wheel grinder no matter how large your contact wheel. I've already dedicated one electric motor for this, and may grab a couple more if I start doing a lot of pipes using this method.
Here's some pics:




Basically, this shape would simply not have been possible if all the holes had been drilled first. Also, without using the spoon bits from Brad, this pipe never would have gotten drilled. Reshaped S&D bits would not have drilled that tobacco chamber, no matter how many names you called them or fingers your injured.
And yes, it passes a cleaner.
