Urutan Recipe and advice needed

[Bob]

The fermentation time remains the same regardless of diameter. Temperature and sugar content affect speed of the fermentation not the caliber of the chub.
The only reliable way to monitor the fermentation process is by checking the Ph. The safety hurdle is 5.3 or below.
If you want you can different size plates for your LEM grinder at any of the suppliers like The Sausage Maker or Butcher and Packer etc.