I have Yashicamat (not 124) with the Luxamar lens which I bought used nine or ten years ago. It worked well for a couple of years after I bought it, but got pushed to the back of the shelf after I bought a Rolleicord Va. When I recently took it out to test it, the shutter was jammed. Now I am thinking about sending it to Mark Hama for a CLA. Do you think it is worth it?