Bacardi,
You put the APCD discs on the top points those that will engage the bottom of your sub. For maximum grip and launch I elected not to use the discs on my subs, also piano black. I don't look at their bottoms. My subs bottoms that is. Tom
You put the APCD discs on the top points those that will engage the bottom of your sub. For maximum grip and launch I elected not to use the discs on my subs, also piano black. I don't look at their bottoms. My subs bottoms that is. Tom