Thanks, guys for the replies and now I'm really 2nd guessing myself. I used the
https://tasteofartisan.com/homemade-sopressata/ recipe which uses 2.7% salt and 1.33% Dextrose. I watched the video at
http://twoguysandacooler.com/t-spx-salami-starter-culture/. UMAi also has some videos which also talk about T-SPX fermentation time. The number they use is 36 to 72 hours.
I put mine in the fridge when the color basically matched the recipe's color which happened to be around the 36-hour mark. The recipe uses a different culture but I think the color would be the same?? From what I understand, the recipe uses a high % of Dextrose and I'm not sure what the effect is on the fermentation time.
Back in the cold oven for my family's safety. I joined this site so I can learn how to do these things correctly and I can't thank you guys enough for the heads up! I'm also looking forward to the day when I get enough experience to give back to the new people starting out.