K, so definitely something up with the meter, turning it around to all ISO didn't do anything as I would have it turned on 200, and it would show that behavior, then go to 100 then seems normal, but then 64 gets the behavior again, or 1600 normal. But I noticed that when I'n on one with the stuck red-over, if I tap the top of the shutter dial it'll work normally from there.
In regards to the flash sync, I'm chalking it up to a bad RF transmitter as we have two in the studio (both neewer brand), and I used the second one on the test roll, seems like one of them is so delayed that even though it fires it's like it's either firing well after the shutter or too soon (though more likely well after, because too soon wouldn't make sense, since it's instant for x-sync no?)
With the second one, you can see an exposure difference between using the shoe, and using the cord directly (exposure difference between 1/60, 1/30, 1/15 simply reveals more ambient light, though the two I tried without the room light off for whatever reason simply did not fire). Also I suspect that the AB's sync cords has too a tiny pin that needs to be pushed towards the side with a tack so that it makes contact with the inside of the sync hole.
Though still not sure what's up with the pc sync not firing when the self-timer is used, or the meter going wonky. I'll have to contact Eric with my findings and see what can be done since I bought the camera from the previous owner mostly because it was advertised as fully CLA'd showing a scanned receipt from him.