I've not seen any insulation breakdown test results for Res-C. It seems very inert.

The challenge is keeping your hand away from the lanyard hole/tube which runs through the rear of the tang inside the Res-C. If you have an ohmmeter you can check the contact resistance. I'd measure it for you but most of my tools are in storage <img src="/ubbthreads/images/graemlins/frown.gif" alt="" />