IAlso be aware that a proper M44-7 stylus has an insanely high output (11mV). I suspect this is where the truly visceral slam and punch these things have comes from to some degree, but I’d not be surprised if some phono stages would hit the end stops. By comparison the M55E has an output of about 5mV, so it is all about the stylus assembly.
Y M55E with its lower tip-mass and smaller lighter magnets and the real sledgehammer that is the M44-7. The range is a fascinating lesson in historic cartridge design and helped nail-down a lot of the technology in the many decades since. Shure’s whole history is fascinating. I really wish they‘d start remanufacturing some of their real classics. I imagine both the M44 range and a recreated V15/III would sell like hot cakes.
The official various Shure M44/M55E stylus assemblies are all detailed upthread in post #30.
Shure developed and produced so many models/model variants during the '60s and into the '70s that I wonder if those M3D that were still for sale during the mid '70s were existing inventory of prior production. We certainly didn't see any on the shelves when I started in retail as Saturday boy.1976 Shure cartridge brochure. I had no idea they were still making the M3D then.
If I was ever tempted back into vinyl I'd probably try to source an M55E with a Jico if possible.