Hi people so after building my smoker i was itching to use it the first thing i wanted to try was pulled pork. So i got my self a nice pork shoulder and found a nice dry rub recipe i applied the rub and left overnight in the fridge. The morning after i fired up the smoker got it around 125c and popped the shoulder in on the middle shelf. I resisted the urge to keep opening the door for a quick peek. i didn't have any charcoal so i was just burning wood which was giving of a nice smoke but i found it quite a task to maintain a steady temp this was kinda annoying me a little as i spent allot of time making the smoker but it was my first time after all so i kept going with it. I had a temp probe in the meat and smoked it till the internal temp was at 90c. I removed and let rest in tin foil for about 30Min's but as a tried to pull it i found the meat to be quite firm and not wanting to part easily think this maybe because my temp in the smoker was up and down quite a bit plus it didn't taste right is it possible i over smoked it by burning wood constantly pleas tell me where I'm going wrong