I get very repeteable results by weighing the salt (don't use iodine salt if you want max smoke flavour) to get 2.5%, keeping all pieces separate with butcher's paper (few days in fridge). You can add spices also, I use dry spices only (no marinade etc). Take the paper of for last few hours to get the surface moisture off the meat. Keep notes of the spices so you can repeat if results are good. I recommend trying only one or two spices at time. That way you find out what works, can experiment which spices go well together etc. After the "basic research" is done you can try more complex combinations if so desired.
I basically do only separate whitetail (and sometimes moose) roasts, all sinew etc. cut out.
If I eat the meat right away (warm) I usually go for about 55 Celsius, and if put into vacuum and fridge, maybe 3-5 degrees higher. Find it easier to cut thin slices, and prefer the texture more when it's cold. Maybe you could reheat the pieces in oven, monitoring that inner temperature stays 50 Celsius or so, haven't tried. Regular heating kind of defeats the purpose, since the meat cooks.
When smoking at around 100 Celsius, I find the inner temperature doesn't rise after taking the meat out. For best results you need to test what the temperature is in different parts of your smoker, and monitor each piece of meat (in addition to at least one reliable reading from the smoker itself). You can move the sensors around when you take some of the meat out.