I intend to replace Karp's cases at some stage and will probably go with the alloy version of the ones I made for TwiceShy, both stainless and alloy sets I own have had a failure of some sort.....
Karp's failed at the hinge and Shy's failed at the lower pintle, and I can see why each failed at their give points and how to 'fix' the 2 issues without major effort.

I haven't finished with Shy's cases yet and intend to make more changes in order to get it a more workable system, even the latest changes I did will be improved on with very minor mods that will give a vast improvement yet again......

The lower stainless pintle plate will be first to be changed, unfortunately it's a new plate time again but should solve the rivet load problem, the 2nd mod will be to the carbon locking system,..... It will self release when it comes under excessive load