like i said bro hard coat anodizing or clear powder. clear wet takes too long to harden even when baked to be clamped on.
i appreciate the good machining, a good finish and all the edges are broke.
like the use of cap screws over ph's.
so do i get a free woofer for guessing the reason. i have seen plenty of woofers that use a plastic yoke under the spiders and it works well for making triple joint strong and preventing the former from crush/cracking. the problem is when it hits the top plate and blows apart lodging plastic piece in the gap...