Here ya go...the netting stuffer tube I told you about...
https://butchersandpackers.com/plastic-orange-butt-stuffer
You can rotate product around if necessary to even it out. I'd put newer product in the chamber with faster airflow....or small diameter salamis....
The higher fat content stuff will dry faster because fat has less water than lean. Also, you can use less sugars with higher fat ratios because there is less water in the mix...meaning any lactic acid created has a higher concentration in the lower amount of free water in the mix..... more of those little details you pick up on as you make more and more salami.Look at the mangalista fat content! Too high but it’s sinfully good stuff .