A bit of backstory...I picked up a G17 Gen 2 about 2 years ago as it was a great deal from a retired local cop whose wife hated any and all guns, so not "allowed" to keep the G17 even if it was locked up in a safe! Fast forward to today and after installing a spare Vickers Tac slide stop on the frame it seemed mushy when dry firing and testing it on bench. Live fire tested the gun with VTac Slide stop installed and it works as advertised but still mushy. Took the VTac one out and reinstalled the OEM one and it fine with no mushiness at all. Removed and then tested the VTac slide stop on Gen 3 Glock22 and was fine also , no mushiness. What am I missing??? Any help would be greatly appreciated!