Just a few questions: 1. Who makes the best suppressor? 2. Who makes the best extended barrels? 3. Am I correct in thinking that 147gr loads would be the best for this purpose (most quiet)over 124gr and 115gr? 4. Anyone know how long the BATFE paperwork and signoff take? 5. Any other forum with significant amount of info on this topic? Thanks. I.G.B.