I have mine in .40 as well. After 200 rounds she really "breaks in". I've put 500 rounds of various ammunition through mine and have had no problems at all. Just like Doc66 said, great grouping (which mostly comes down to the shooter since guns are more accurate than the shooter anyways) and 100% reliable.
Amazing little HD gun and I plan to carry it once I get my CCW.
Looking forward to your journal!
Sig SP2022 .40 S&W
Stag Arms Model 8