I make the 6" ,,,, the big one ,,, I made it weghted with 1 00 buckshot behind belly hook and I made it unweighted .. Numby told me last outing, weighted is the way to go . I'll send you a blank of mine to keep/copy if you want .
You have good reason to be proud of that plug.........no easy task to build something like that without a lathe. Very impressive! Looks like it will work well, good luck with it. Post some pictures of what you catch.