The ball detente looks exactly like a Spyder detente. Also, it doesn't appear that there is a notch in the bolt for the detente. If both of those are true, then you might get wear/failure of the detente if the gun is stored with the bolt closed. At least on the one spyder I have, the bolt does not have a notch and the detente is now bent in one direction and occasionally double feeds small paint. Just something to keep an eye on.
Very nice review. I think I know what I want to buy next.