Not my ski or my work but a guy local bought a nice edge with all the goodies, dasa 950, bpipe etc. Blew the engine up, sent it to a pretty reputable shop that I'm aware of, spent close to 10k getting engine completely rebuilt, assembled, tuned etc cause owner didn't know how to work on his own ski. 2nd ride after getting it back last summer, bpipe chamber comes loose from the coupler. I take a look at the ski and the shop used 2 4", super thin oetiker clamps on the chamber coupler instead of worm clamps. I couldn't believe what I saw especially after hearing how much he spent.