@rsf507 yes, it is the MSL. Since I also got a new phono stage at the same time it is difficult for me to determine what is due only to the cartridge. I can say that tracking is not an issue and construction quality is up there with the best I have seen. It's stylus has the highest level of polish I have ever seen. It glows under the microscope.
@mglik , I am probably looking at the same timeline. I was told I would get one whenever Japan decided to make another run of them.
@drbond , Simple, I have a phono stage that has both current and voltage mode inputs. Current mode, which has certain advantages over the more common voltage mode, requires a cartridges impedance less than 10 ohms. The lower the impedance the higher the gain. The Atlas SL has an impedance of around 1.5 ohms. The regular Atlas is 4.2 ohms. Lower is better.