First ever smoke experience

I figured I couldn’t mess up pulled pork. Went to the Publix and bought a 4 pound Boston Butt, and let it sit in my fridge on a tray for a while. Someone sent me some heath riles seasoning so I looked him up and decided I’m not doing all that. I trimmed all visible fat and anything that looked gross, then coated in stone ground mustard as a binder (it was all I had.) I did a light sprinkle of salt, pepper, and garlic powder, then a decent coat of the heath riles honey rub. Threw it in the fridge and put my Pro 22 on smoke. When I came back the meat had sweat a lot from the salt, that stressed me out so added more honey rub. Smoked for 5 ish hours, the butt was at 150° so I set the smoker to 275 for like 2 hours and the temp of the meat didn’t move past 170°. So I decided to wrap it and a movie later it was 210°. Let it rest for 45ish minutes, turned out pretty good.