Well they are both very good. But with different stylus shapes. The ML (microline) is probably a little bit easier to set up. The SH (shibata) is more critical that the set up is right to get the best from it. The SH has the potential to be the better cartridge but as I said it takes a bit more effort to get the best from it.
At the prices they are brand new both are brilliant value for money.
I currently use the SH, it’s very good and a terrific tracker. No experience of the ML stylus, though I’ll probably buy that when the time comes as it’s cheaper and supposedly lasts longer.
The reviews are very good.
It’s down to preference Mike, not heard those particular models, but I’ve had AT Shibata and Microline carts in the past, and I prefer ML. But my mate has had them too, and prefers Shibata.
The beauty is with the MM you could buy one whole cart and a stylus with a different profile and move the stylus you don’t like as much on for relatively little loss if it’s only had a few hours on it. Some dealers might even do you a bundle price rather than charging separately.