The first two times I visited PCB I came down 231. On the third trip down I decided to take 331, it was a lot quicker with less cops. It will take you from Montgomery to Highway 98, and then take a left. Its about 16 miles to PCB after you take the left onto 98. From Louisville, it used to me 10 1/2 hours to make the trip now it takes only about 8 to 8/12 hours. I have been down 331 7 times and not had any problems at all. You do have to pay close attention to the highway signs, 331 has a lot of turns through small towns. It could be pretty easy to miss a turn.