I am going to do a little science fair project to quantify the PT thing.
I am going to get a bunch of scraps from by project and put a variety of fasteners, Simpson clips and such in them, toss it out behind the shed and look at it in a year or two.
Of particular interest to me are the "hot dipped galvanized" gun nails I have a box of. They are supposed to be OK in the new PT but I am skeptical.
I am using Trex blocks anywhere that metal would touch the PT, just to be on the safe side. Aluminum seems to be the worst. That rules out Bell boxes.
