I totally agree with you, I have fitted both Ruger rings and Leupold Double dovetail (did not WANT a quick release feature) to Doubles and also to an Integral rib 375 Mauser. Just takes a little care. Have also fitted Claws which is made harder by the poor design and execution from the manufacturer. Last set I bought and tried to fit to my Merkel would have had to be attached above the rib so I chose to mount a pivot mount which fit perfectly.