Commercial has the grooves cut into it or pressed into it and the Mil Spec are on the "outside " of the tube so the idea is that it reduces the chance that when you stress the tube you break it off at the threads. There are several charts that show the optimum injection pattern which is something like 3 o'clock but it can run well between 2 o'clock and 5 o'clock as you face forward. So it's not only reliability it's having your system set up so it's optimum to the gas for that load that you use. I agree with the buffer, I like the H2. I run Tubbs flat springs with about a coil cut off.
Edited by EBF (04/11/15 08:40 PM)
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