Good snatch PR. It's one of the hardest movements, I personally think.
Er, you dislocated your shoulder and then did a WOD?
well, yes. but i kept the arm immobilized. it has happened before several times, and, unfortunately, it has been prone to happening since those previous times. by prone, i don't mean it happens all the time. in fact, it probably hasn't happened for a few years now. but since the initial occurrence about 15 years ago it has probably happened 10 times.
Hm, a true dislocation causes a LOT of problems and pain. I think it may have been a subluxation which can have the "clunk" feeling of it going back into place. You might want to lay off the snatch stuff then. You need full, healthy shoulder range. You likely don't have that (or else it wouldn't do that). You'd have to have somebody mobilize your shoulder joint and soft tissue surrounding it (plus strengthen specific musculature) to reduce that risk.
Is there a way to determine if its a subluxation vs a dislocation? Will a more detailed description of the accident and symptoms help?
You wouldn't have just walked away from a dislocation. Essentially, that will tear much of the anterior capsule, damage the labrum potentially, and may even cause a fracture. You'd be bruised and wouldn't be able to move it for days. Subluxations are painful, but the pain is typically temporary, even though there is a clunk in and a clunk out. With a dislocation, it doesn't typically go back in by itself - you have to see an emergency physician that will utilize special joint positions or a weight to relocate it.