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Good suggestion about soldering. That’s how I did mine. 10 #14 radials to a #6 ring, exept I used electronic grade solder and it worked ok. Not as strong as what you used, but OK. It is kinda tricky with a torch because the wire tends to oxidize if you over heat it. The paste flux works better.
I recall that YvesRoy was using #20 wire but stated he had no soldering skills which probably means he has no soldering tools. I would recommend solder over the mechanical methods, but the split lug will work nicely if sized properly.