RJT-
I've recently used 95A to fabricate some vibration-isolating (and break-away) motorcycle crash bar mounting studs for a BMW K-75. Was excellent to work with (meaning easy to mix, pour and form) but I was not principally looking to shape it. That said, I crashed my bike a few weeks ago and damaged the mounting studs. The 95A performed well. It held sufficiently to allow the crash bars to absorb the impact but gave sufficiently that the engine mounting holes were undamaged by the crash.
So...I recently had occasion to have to machine the 95A. I bored it out of the isolation mount on the lathe in order to repour the studs. As you would expect it didn't machine great. It was gummy and soft (more like nylon than Delrin). I was simply boring it completely out of a cup, so holding tolerance wasn't the goal. Based on how it felt to machine, I think you'd experience similar results to nylon. Super sharp tools with high positive rake and small depth of cut would probably be best IMHO. It's going to want to push out of the way instead of break a clean chip. Again, less like Delrin, more like nylon would be my best description.
Caveat (I'm not a professional machinist so YMMV)
-DD