I am sorry if you are having problems, how many times have you had this happen? If you in any way think that your chain may be faulty then please contact warranty and we will be very happy to look at it. If you have previously ordered a masterlink kit then I would have thought we could sort something out or cut you a deal on the next one.
The keychain has been in development for a very very long time, and generally speaking we have seen very very few JRA type incidents, there are no modifications or V2's in the works. (though we are looking at doing slightly longer ones for non-BMX use).
I hope this sounds reasonable.
G.
Honestly, I had no problems with it up until now. I don't ride pegs, and ride a full guard sprocket. It was literally out of the blue and I can't exactly pinpoint which failed, the master-link or the link next to it.
the threads on the master-link pin completely sheared off