Bought mine March of 24. Loved the operation but struggled with long term consistency. Issue was the bb spring tension on the hammer. Turns out vibration caused the grub screw to back out and thereby release the hammer adjustment to rotate any which way after every shot. It was such a simple silly thing. I added vibra tite to the grub screw instead of locktite by preference. Now assuming it holds, this fine instrument should perform flawlessly. Frankly, it’s a miracle that I shot any 1 MOA groups.