We're getting there! Today more painting, and beginning shell #2.
Implementing the solid button arm may require some sled customizing. I plan on direct soldering the 510 Jack nut to the arm, which would require sanding out the threads for the Jack itself. In order for it to work properly and allow it to be removed, the nut has to be placed in such a way that it can be gripped with pliers to be tightened or loosened.
Also, I feel the solid arm should not have a removable contact screw. If you direct solder the screw (cut down former FDV positive pin) to the arm prior to putting it in the sled, it will require cutting out some material in its channel so that it can be installed and completely removed. I'm in the process of figuring this one out. Pics will follow once I have it worked out.
Fortune favors the Bottom Feeders.