Received an ASSA in the mail today, but...
It's a cutaway lock, so for the moment I'm looking to see what's going on every now and then. It's helping, but not much... I get the same results from the other side, but even looking to see exactly what's going on and moving the pins individually all I can get is a couple of overset pins - which only bind with heavy tension and drop back into the keyway when I let off the tiniest bit. I even went so far as to cheat by lifting them each through the side and they STILL won't set properly regardless of how little or how much tension I apply.
I tried top and bottom tension (and both simultaneously), aswell as tensioning each way in both directions aswell... tried SPP, raking, rocking, scrubbing, you name it. This thing just doesn't want to budge. It contains serrated drivers in every chamber and the bitting is a real nightmare; usually I wouldn't jump to such a conclusion but I'm pretty sure this is having an effect on how they're behaving nd making it nigh on impossible to pick. Take a look at this quick diagram I mocked up (pin 1 is the closest to the face of the plug):
Also for reference, below is an image of the cylinder. It is stamped on the side with the code "HNR 76461", which I assume is just the factory code for whatever restricted key blank it takes and the installation it came from, but maybe it'll tell one of you something that might help me out.
EDIT: The original close-up of the pins wasn't much good so I took a better one. Note the length of that front key pin, and how close the gap between it and the driver is to the shear line! Also, anyone had experience with this type of drivers? They're like barrel pins but with a very thin ledge added to each end. They definately aren't keen on the idea of setting properly.
This thing is driving me nuts. If anyone has experience picking these and knows a little trick I can use to get the right tension or can fill me in on why nothing is behaving the way it should, I'd really appreciate it. My gf is bugging me to get on here now so I'll check back here later.