I think it is their problem to leave room for my screws. They don't need to cut the hole bigger but they need to leave room for my plate screws with a notch or whatever it takes. Not my job to cut granite -- it is their job, IMO
If you're talking about the tile/granite people not cutting enough around the mudring I agree.
If you're talking about the decora plate screws... Some plates come with very, very short screws (4-5 threads, didn't bother to measure them), but some come with longer ones. I just cut them with a plier for the latter. 6/32 is small enough where it won't mess your thread.
What kind of pliers do you have that won't mess up the threads?
I used to try to cut the screws but seems like you have only .001 inch tolerance or the screw is too long or too short. I have a diamond wheel for my 4-1/2 inch grinder and just make a little slot from edge of cutout far enough that there is room for the screw.
The tile and granite guys will tell you who wants to mess up the backsplash with outlets? Put plugmold directly under the upper cabinets.
I have not tried but would consider the screwless plate idea. Then you have the designer homeowner that wants to replace your standard plates with wood (if metal backed they typically are acceptable), brass, porcelain, or some other decorative plate and then you have same problem again.