Nice write up Jon.
I would say my experiece was similar with my most recent WASR. I had no need to adjust sights. I didn't shoot mine for measured groups yet, but it hit everything I pointed it at from 25 to 100 yds which were mostly 20 oz soda bottles and 2 liter bottles.
I had no noticable cant to the sights or gas block. No failures to feed. fire or eject rounds with two Tapco mags or East German surplus mags. I haven't tried my Chinese drum yet with it. I did try FMJ, soft point, and Hollow point rounds as well as some brass cased ammo.
It didn't seem to miss a beat even with one randomly mixed mag of ammo. I did also notice that the gun would walk diagonally a bit in rapid fire. I'd like to eventually try one of the Effin-A comps that can be tuned to compensate for climb and recoil by adding or removing screws into the holes in the comp.
But, for all the complaining people have done regarding WASRs I have had a few and all have been free of the problems that others complain about. Not to say that I don't beleive there are problem ones out there. I've just been a bit cautious before I buy one.