Get anything aluminum. Seriously, that plastic most mounts are made out of is brittle AF junk. The fact that GoPro forces retailers to charge a premium for their brand stuff is just a kick in the nads while you're down. The caveat mentioned above is BarFly stuff. I've found from personal use the composite they use is very durable. I've found pants-loads of great stuff on the "big A" site.
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Droping the hamer since '86