After catching up on the TX22 FRT, I’m convinced this same thing could work for the PSA Rock since it uses almost an identical fire-control-group with the firing-pin safety requiring a similar part to interact with the trigger and the slide (shown for the TX22 on the left, and the PSA Rock on the right). Is anyone working on it? I picked up an extra one this year so I may work on it myself if nobody else is.

The upside of the design on the Rock is that the disconnector is actuated by the rails of the slide instead of the internal surface. There’s a small pin that extends out and sits below the bottom of the slide rails and pops up with the disconnector. This should reduce wear and tear of the slide the way it’s seen on the TX22.