Most tips are in my first post on this thread;
However as for the number of days, I would sooner see you cure for about 9 days, so make sure you cut the thickest piece in half & check to be sure the cure got to the center---The pink should go all the way to the center, without any Gray/brown in the center.
Years ago I sliced my Cured & Smoked meats sooner, but I got delayed one time, and found that 38 to 48 hours in the fridge lets the flavor spread & get mellow.
I tried another day, and found Zero difference, so I like 38 to 48 hours after smoking, for slicing.
If you're going to slice by hand, I would try it after 2 to 3 hours in the freezer, instead of 4 hours.
Try to take the IT to at least 145° for safety, but try not to go much over 150°. We used to go to 160° in the old days, and that was too Dry.
It keeps in the fridge about as long as processed Lunchmeat---About 5 days or so. Any longer Freeze it. That's one of the reasons I do them in small packs.
Bear