In reply to Mowgle
I think you are talking about the discontinued alien evolution. There was a recall on them because the trigger wires broke with next to no wear. They will no longer offer to repair them - appalling in my opinion and that company will get no more money from me.
I have three I bought about a year ago. 2 have self destructed in that time. On one of them the wire had simply pulled out of the brass ferrule and I was able to carry out a botched repair by passing thin copper wire through it (ebay craft wire for beads 0.4mm but 0.5 or 0.6mm might be better). I wrapped it around the stem below the triggers and it works ok.