Well... I've cut about 1/8" off the the .692 back and am not getting any jams. Now I get to run some paint through it to see what sort of effect this has.
The good news is that I got an Impulse threaded back as well so I can use this on my mechanical Ion if I ever get all the leaks sorted out.
| Iggy Pop: "When it comes to art, money is an unimportant detail. It just happens to be a huge unimportant detail."