Ultimate Lenco THE Transcription Record Deck

Designed to be the best record player in the world, based on my often-proven superiority of the idler-wheel-drive turntable via several reviews, refined and developed through decades. Built by commission only.

From Arthur Salvatore's review of the Ultimate Lenco, it and the original Reference Lenco I submitted in 2010 are the only two components to ever achieve a Level 7 improvement: "The positive sonic results, which I discussed above, can also be simplified in a similar manner:
1. The sonic differences between recordings, and even individual cuts, are more pronounced than ever before.
2. The Ultimate Lenco/Kuzma comes closer to the performance of a Reference quality open-reel tape than any phono combination I've ever heard.
Finally, if we must strictly focus on the Ultimate Lenco all by itself: There are really only two fundamental causes for all of the different and important sonic improvements which can be attributed to the Ultimate Lenco alone: The "superior flow" and the "lower noise".
The Bottom Line - These two performance attributes, both on an unprecedented level from my perspective, are what truly separate the Ultimate Lenco from all the Reference Lenco models I've previously heard and reviewed, and all the other turntables I experienced before them as well."

Specific to the Ultimate Lenco is its 14 1/4" platter, designed to improve on the original Lenco's superb flywheel platter even more, and more than any competing design, being also a denser alloy, and better-sounding, than aluminum: 

"Measured Time for the two platters to come to a complete stop, after shut-off (33 RPM):
Reference III - 13.18 seconds
Ultimate - 34.63 seconds
34.63/13.18 seconds = 2.63 Inertia Ratio
I had estimated that the Ultimate/Reference III Inertia/time ratio to be around 2.5. In actuality, it was around 2.63. This Inertia Ratio is important and objective evidence of the much greater inertia of the Ultimate Lenco. Finally, there is one more factor, concerning the respective platters, which may also be relevant to their performance. I found that every stock casted Lenco platter, on all the Reference models I used, had a tiny "wobble" while rotating, while the Ultimate's platter is as wobble-free as my vision allows me to see.
In summary, I believe that the objectively greater inertia is the primary reason for the improved "musical flow" of the Ultimate Lenco, as well as all the other sonic benefits which come along with that specific improvement, and discussed in detail above.