Mas: I respect your experienced opinions greatly. Thus, I ask for your insights on longer barrels in the pocket rockets. For example, I just ordered a G32 357 Sig (4 inch) barrel for my G27 (3 1/2 inch .40 S& W). I decided to try the 357 Sig and decided to pick up ~ 50 f/sec velocity while I was at it. The barrel protrudes ~ 1/2 inch farther but does not seem to be a problem. Beside the velocity gain I expect to gain from the bottleneck cartridge feeding ease and slight recoil/blast reduction.