21carrier, I know u have tested a lot of 10mm thrum the glock 20,29. I carry the the 29 for Edc and 20 for home defense. I use the hot underwood 135 and gold dot 165. You mention that you have had better reliability using stock recoil spring and that's what you use for Edc. Have you shot many rounds with the stock rsa and have you noticed any frame battering/damage? Many here use a heavier rsa, but I don't want to do that if reliability is compromised, but don't want to damage the frame either. Appreciate you response.