Does that sound about right? I'm assuming no clamps are needed to hold the cut part of the 90 degree coupler and the straight coupler together right? I'm guessing it will be snug enough as well as compressed together when mounted and clamped. Judging from the last pic in my post, will that still be snug? It appears to be off by more than just a little bit. I'm afraid the angle might not seal properly especially without clamps on the small metal pipe.