MY SONIC LAB Cartridges

The EMT's are very good, and often overlooked. I would say the same is true with MSL, though I've yet to hear one. I think there is something with the Alnico magnet that gives a forceful drive to the proceedings which works well with Shindo. The way my TSD 75 has performed makes going a different direction feel like quite the venture. 
In fact, there is a fair chance I may cave and go with EMT again. Their new series (Noble ?) is supposed to be mega bucks, so I would likely go pure black or Lime.The EMT is not considered to be a soundstage champ, but they offer a very pleasurable listen. 

It’s still aluminum. Duralumin for a bike frame was considered...meh

Wrong again.
duraluminum is an alloy - a composition of aluminium and other elements.

https://www.merriam-webster.com/dictionary/alloy

Why do you think a material not used in bicycle frames should not be used in a phono cartridge - do you put treacle in your car - its runny just like oil ??

 Sigh

 Dover,
You win...it's not juiced aluminum
https://www.downloadclipart.net/large/blue-ribbon-png-photos.png

Do you need anything else?

@dover have you made any direct comparisons between MSL cartridges and the work Matsudaira San has done for other brands like Airtight, TechDas, Haniwa, Accuphase and others?
The body materials, components and specs are all more or less the same, so it would be interesting if there's a difference between his own brand and the OEM work for others. Perhaps there's a certain amount of tailoring the sound to the requirements of that particular brand?

@edgewear

I have only heard the MSL & Airtight.
My impression is the MSL tends to sound more precise versus the Airthight which is little warmer in the midrange. Personally whilst others describe the Air Tights as more musical, romantic - I found them to be a little muddled through the midband. Of those two brands I would go Mysonic every time. I think some folk who have "hifi systems" prefer added warmth to flesh out what is missing from their system.

I think what happens is that as Matsudaira's development continues you get trickle down to the OEMs. I suspect that the OEM's have a say in how their versions are voiced. You have to remember that all of these businesses - Mysonic, Air Tight, Techdas etc - are artisanal and they will be wanting a voicing that suits their own products that they either manufacture or distribute.

At each price point they are similar in performance, but my attitude is why buy the OEM when you can buy the original. The designers own brand, Mysonic, will represent best the designers goals at each price point in my view.