The answer to this question is a bit complicated. On the one hand, yes, pulled pork will get more tender the longer you cook it. However, there is a point of diminishing returns where the meat can become too mushy. So, it really depends on your personal preferences as to how long you should cook your pulled pork. If you like your meat on the more tender side, then cooking it for a longer period of time may be ideal. However, if you prefer your meat to have a little more bite to it, then cooking it for a shorter amount of time may be better. Ultimately, it is up to you to decide how long to cook your pulled pork based on your own preferences.