Been awhile since I pulled it apart. The pill does take quite a bit of force to get it to turn loose. I used a pair of very fine long needle nose pliers.
Mine look like these but they’re from china. I have no idea where I got them. It will come out if you can get the right tool and enough torque to free the loctite. A little heat or freezing might help also.
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@toddcshoe, I did manage to get the mountain boost driver in the A1 with a xhp50.2. I made a pill on the lathe to make it fit. Unfortunately I did something to the driver during testing where the output current doesn’t try to stay constant. Waiting patiently for Richard to release a new batch to replace mine with. It’s floody with the xhp50.2 shoved in such a small reflector.