I believe I experienced great PRAT for the first time

Congratulations. I think it took me forty years to put my finger on what PRAT was. I knew that my foot was the key. Once I recognized it… how to listen and hear it, I really recognized what high end audio reproduction was about. My system now ARC / Sonus Faber is so musical I have a hard time tearing myself away because the music is so seductive… as opposed to the details being so amazing.

‘PRAT is what should be the primary driver of purchases, but in fact is one of the hardest characteristics to detect and use as a selection criterion in our purchases. Hence one of the reasons so many have amazingly detailed and unmusical systems.

Welcome to the world of high end music!

The term PRAT was developed by the marketing department. 

Excuse me, but wasn’t it Tiefenbrun’s (Linn’s) point that turntables create PRAT, not cartridges or anything else in the signal path. So, what turntable? Probably not an LP12. But maybe.

A highly modified VPI classic 4, with the SOTA Eclipse motor and controller upgrade, including an Origin Live belt and an SME 312S arm and Funk Achromat mat, and last but not least, ISO Acoustics Gaia 2 feet. The motor is sitting on two levels of rubber standoffs to eliminate transmitted noise through the highly conductive plinth. The belt I had to run the calculations on and experiment with several belts to get the perfect one down to the millimeter, as the motor is fixed. The reason I bought the table in the first place was that it was relatively cheap way to get a table that would take a 12 inch arm. So, I was able to overcome the severely under engineered design, over a period of several years of frustration as I discovered deficiencies, to provide a great platform to let this new cartridge sing. 

My feet tap to the music not the system. It is great that your transient response and dynamic contrast have improved with your new cartridge but, rhythm and timing belong to the musician.