I have 2 pork butts in the smoker they have been in theer for 4.5 hours, one is about 5.5lbs and other is about 6.5lbs. I have been smoking them at about 225-245. The large one is only registering a temp of 128 while the small one is at 145. Do I have to worry about the larger one taking so long to come up to temp as far as food safety goes??? It is windy and cool here but I have been able to keep pretty good temps. This is only my third time doing pork butts and none of the other ones seemed like they took this long to come up to temps.