So you may have realized by now -that you don't screw the main piece in all the way, turn several rounds to get it threaded in good, then you tighten the lock ring down (by hand) so that the main piece won't unscrew. Then when you want it out - loosen the lock ring and the main part will turn right out, it should never be tightened all the way down or bottom out on the threads. In just far enough to make solid threads and then the lock ring holds it in place.
I think even in the video the guy screws it in too far. Leave enough room for your lock ring to turn a couple of rounds and have room to work with.
I think even in the video the guy screws it in too far. Leave enough room for your lock ring to turn a couple of rounds and have room to work with.