Sorry to bring up an old thread, but As far as I can tell there is one ofthese 10mm cast single point lower offs on invisible fist. Didn't appear cracked but I didn't look too hard, and I left a Biner on another bolt. Someone local should perhaps look into it as it is fairly high traffic and many people used it as a single point to lower off. It's captive on the u-bolt so will require some effort to get off.
Just thought I'd let you guys know, if you didnt already |