Acquired some plastic Lisco 8x10 holders whose dark slides seem thinner and more fragile than my Fidelity plastic holders. Out of curiosity I tried to insert a Fidelity dark slide in the Lisco and it worked fine. My question is has anyone gone to the effort of having new dark slides cut out of the thicker sheet plastic to overcome this issue? I have to think that with the proper material and a router jig one could knock out some replacement slides fairly easily. Before I go down this road I wanted to check to see if anyone has solved this problem previously and what experiences could you share? I would love to be able to contract someone to do this so any recommendations would be marvelous.

Thanks in advance!