Thanks, greydog. I never thought of SAIT, I'll keep that in the back of my mind. I think he'd have welded it but couldn't get his TIG tip into the very back of the feed rails where they were ground.
If I find time, I'll post a picture of what I did - which did involve solder but not the feed rails. Seems to be working OK but it's ugly so I'll pro'ly do something else in the future. Works, tho.
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