Well, I went ahead and got the non-optic P35 Ops. Found it locally for $600, which was too good to pass up. If I see the optic model somewhere in stock, maybe I'll pick that up too.
Observations: it's well put together and the finish is even. The undercut frame and extended beavertail are great additions.
The trigger weight is a lot heavier than my FNs. I think this is primarily because the sear spring is much stronger than the FN, for no apparent reason. On a field stripped FN, when holding the hammer back, I can easily pivot the sear with my finger. On the Girsan, I have to use a dowel rod against the sear to get enough force to pivot it.
Aside from trigger weight, the trigger pull feels good. There's a small amount of smooth take-up to a very well defined wall, a little creep, and then a clean break with essentially no overtravel. Reset is weak, as on most hi-powers. I wish some attention had been paid to making that more positive. Not really Girsan's fault, but they missed an opportunity for improvement.
Initially the mags would not drop free. I discovered that the medallions in the G10 grips were retained with a cotter pin type setup inside the grips, and part of the pin was protruding into the mag well. After seating the cotter pin ends to be flush, the mags now shoot out.
A Brownells threaded barrel dropped right in and manually cycles well. I also tried a Lone Wolf threaded barrel, which would not lock in. Likewise, my FN barrel would not work in the Girsan, nor would the slides swap in either direction.
I'm going to shoot it as-is and see how it goes. Then I want to at least replace the sear spring and see if I can lighten up the trigger.