That and Ive had good luck with using clear packing tape on both sides and on drilling a hole out Ive used Duct tape on both sides and it went pretty smooth for me that way.I had it on the skillsaw table but hanging off about 1.5'' to clear the bit. I drilled on high unfortunately. How easily it snapped has me concerned if it can handle the pressure from the sub. I've got a replacement piece coming. I'll do low speed and 100% support on that one. Thanks for the tip. 👍