MY SONIC LAB Cartridges

If a Product is designed to be assembled using a Specific Body Material, Magnet, Coil Wire, Cantilever and Stylus, but has a different suspension specification and Output, there will in my mind be traits that are presenting quite similar across Items being produced with such similar assemblies of materials.
The Ortofon Family of Kontrapunkt and Cadenza's are a testament to this, as it is quite easy to identify the traits of the design intent when hearing the presentation offered across a few Cartridges within these two design era's.  
How each item with similar materials and design, separates its presentation to another when heard in a particular system, where a suitably matched interface is also addressed, is only to be understood accurately when able to assess the presentation in person. 
As always in HiFi ones assessment they have encountered a ideal discovery,  is in another's assessment one to be added to the discard list.  

lonely depopulated site if we throw out the gushers and gnashers based on actual listening experience……

i would like to know a dealer w top shelf Lyra, MSL and Koetsu mounted, ready to hear….

therein lies the confirmation bias…..rub…

Dover, Duraluminum is just one of the many compositions of aluminum, basically it's 2024. Commercially pure aluminum is very soft and weak, not useful for much of anything.
When I used to make parts for my racing motorcycles out of aluminum I would have to take into consideration all the factors that the part would be stressed to before choosing the proper alloy. My most used were 2024, 3003, 6061 and 7075.So strictly speaking we call anyone of those above alloys aluminum although they all have different chemical and physical properties. The main ingredient by far is still aluminum.
Is steel really steel? Even more confusing than aluminum for most people is steel composition. There are thousands of different recipes for the alloys of steel that are used around us. Careful selection for the application just like the aluminum alloys is required. And just like aluminum, heat treating can change the physical properties of the material drastically.
Being a machinist it's just one of the many facets of the trade that one must learn to become truly effective. It's also why I keep material handbooks in my library.

BillWojo

I'm late to the game (sorry), but I happenstance came across this discussion and thought I would add my two-cents.  

My experience with the MY Sonic Lab cartridges is limited to the Ultra Eminent EX.

It is so good that I have considered trading my new, in the unopened box Kuzma CAR 50 for another go-round with the Ultra Eminent EX.

Although I have not heard the Hyper Eminent, my hunch is the extra $1500 for the Ultra Eminent EX would be money well spent.

To be fair, the Kuzma CAR 50 is a superb cartridge and I have not compared it side-by-side with the Ultra Eminent EX.

I did, however, compare the Ultra Eminent EX against an upgraded Ampex ATR-102 playing the same music: one on tape (master copy), the other on vinyl.

The tape sounded better (of course), but the Ultra Eminent EX thoroughly impressed me.

I own the same table as you (my second one), but with the 4point 11" arm.

The Stabi Reference original and 2 (with the upgraded power supply) continue to keep my attention longer than anything else I have heard. . .