[RickB]

Safety is pinned in the depressed position.
Stock, the safety fits smoothly in the static, engaged position, but since I was going to pin it in the depressed position, I did a little grinding and polishing so it was better blended in the depressed /disengaged position, the way you would with a gunsmith-fit beavertail (other than all the work is done to the safety, and the frame is left alone).