Sounds like you tried a 10lb batch? You're ending temp of 160 does not seem high enough, considering you need to get to 152-155. I would bump that up ending temperature. My last batches, I set the cycles as follows: 100 for 3 hours (drying cycle), turn on smoke, 130 until IT 110, 150 until IT 130. 180 until IT 152, 152 for 30 min. Ice bath.