I am just in the habit of not dry firing at all now.
I thumb it down to test operation.
I know this original question has gotten way off topic, but the truth is there is no PERFECT holster system, just as there is no perfect gun.
Everything is a trade off.
Unless you have a secret source of money and ammo, dryfiring is the only way to get really good at double action revolver shooting. Even Jerry Miculek dry fires alot.