I asked CT to send me a set of their Compacts to see whether they'll fit...it's a crap shoot, but they are doing more stuff with Para, and, yes, I will lobby hard!
I'm done with the Cannon stuff...tomorrow I'll post Cannon's executive response ("We lived up to the letter of our warranty," which they did, to be sure) and the final solution...I disassembled the lock (voiding whatever warranty there was), removed the circuit board and rewired the circuit board's power set-up, relieving the stress points, blah blah. Then I put it all back together and opened the damned safe. Now it works fine. Next week, I'll find a locksmith who can take me back in time to a boring mechanical lock. I'm trying to decide whether I should go with 2 smaller safes — not Cannons — instead of another big safe...eggs, baskets, etc.
Michael B