Decided not to sell it. Just purchased another X-memory module and found the Finance Pac 1 and Security Pac with templates and booklet. Going to learn to use these and see how much better it is over my HP12C. I don't think HP41CX will beat the efficiency of HP12C, but it does do some things better. Plus< i checked, and my HP41CX I purchased in late 1989 or so, was one of the last models made (in perfect condition).
So far, no calculator has the awesome feel of keys as HP.