Well, it worked OK. Got the 3/8 inside the 3/4 bent around the Sanke. Still got a few moderate kinks but able to straighten well enough. Spring bender, a second person, and a little more time would yield a fairly flawless coil I think. I first hand bent 1 coil around the keg, turned the keg on its side, and proceeded to roll the keg over the pipe to coil the remaining pipe. I rolled on the dirt thinking concrete would flatten the tubing. In hindsight, the softer ground probably contributed to the kinking. Moderately flattened tubing can be hammered gently back to roundish. Anyway, figure the 3 or 4 kinked areas will create more turbulence in the water flow and cool a bit better. After fittings, I should be out around $40 total. I'll post some pixs when I get it mounted.