I had the same problem with the Tenicor. No 'Nancy' fingers here. Quite the opposite, old arthritic hands and fingers. I returned mine(great CS btw) and switched to a Vedder Lighttuk. Similar to the Certum but with a wide single steel clip. Being able to get three fingers on the clip makes on and off easier on my old digits.Ha. No. I just got it Thursday though.
Ugh, bought the wrong holster. I've got the Velo4. Here's what I've learned so far about Tenicor. I love/hate the clips. I'll never worry about the holster getting out of position of falling off my belt. The bad news is, I struggle getting it off my belt (using any belt).