Alright guys I rode my ski today, had alot of fun. When I brought her back in I retorqued the bolts on the ada head like the instructions say. I torqued one bolt down and it was only at about 20ft. lbs. It was a cheap Lowe's bolt that I used as a temporary fix until I get mcmaster bolts. It seemed to break free at the 20 ft. lbs. I pulled the bolt out to make sure I wasn't going to rip rip the head of the bolt off. All looked fine so I went to tighten it back in. It threaded in fine but when I tried to torque it down it just spins. I threaded the bolt out some and it seems snug. Has anybody ever had this happen before? I torqued them down to what people recommended and all the other bolts are fine, this one is the only problem. It is right by the girdle so the ski should still run fine without it, but it ticks me off because I just installed the head and have <5 hours on the ski. I am going to order a new set of bolts and install those.