I used some Hull Insert that Hot Products sells on my X2. I just drilled a hole a little smaller than the insert. Then I used a dremel with a weird looking cutter bit lowered down into the hole to hog out some of the foam below the deck/tray/fiberglass. I mixed up some JB Weld and put it into a zip lock baggie. Then I sniped the corner like a pastry bag and piped the JB Weld into the hole. Next I used a bolt with a nut tightened to the insert to thread it down into the deck/tray/fiberglass. On my X2 I just drilled throughe the bond flange to attach the other end of the strap.
Only problems with mine was that I only used one insert/fastner. I was worried about removing too much fiberglass and the hull breaking if I used two inserts side by side.
Only problem this caused was for the straps to want to twist some instead of being put. Still they only move a little nothing to complain about, just my observation. I am using the twist locking little extra piece you can buy for like 4 bucks from Dakine.
One last problem is that I have mine a bit forward from where they need to be. I rode around a bunch trying subs to see where I would want them. I wish I had mine back farther. Really they are fine where they are but subs would be more of a breeze if I had them back more.
Make sure you put them where you want them the first time!
Slutty's install look great. I may try that next time. Or just drill/tap a strip of aluminum and epoxy it down. Then I could have multiple holes.
