I finally received my Blue/Gray VZ grips from Rohrbaugh on Friday, and remembered seeing these posts about how hard the set screws were to remove. I too had no luck removing any of the screws with my first effort. I did see a comment that after a couple dozen rounds at the range, the gun was warm enough to help with removal, but no range time this weekend for me. So I heated my oven to 150 degrees (using a thermometer-not the oven display), turned it off to prevent any overheating, and put the R9 on a towel in the oven for 5 minutes. (I removed the slide before doing this) Three of the four screws came right out, but the fourth seems to have been slightly stripped from the previous owner, and the hex wrench was too loose to break the Loctite that was found on the other screws. I figured I had one more shot before having to bring it to the local gunsmith, so back in the oven for one more heat cycle, and I tried a star tip just a little bigger than the now slightly rounded hex hole. A couple of light taps to seat the star into the hole, and the screw finally came out. I agree with several comments that it's better to just snug the screws after a range session rather than risk stripping the threads, so I cleaned out the Loctite residue, and put the new screws in with a normal torque. The grips look great, and I'm grateful to the experts on the forum for sharing their tips!