The line you see down the center of the finished board is when one of the knives on my planner decided to knick out. It is actually a ridge which is by far better than an indentation. This will sand off during the finish work with no issues. Thankfully, I have several sets of knives waiting in the wings. It hit that knot you see in the bottom corner.
I selected the most intersting edge for the side to leave on the slab. You can see the waves in it located in the picture with the circular saw. This was a great project. A ton easier with a band saw mill, but no less rewarding with the chainsaw. Glad I didn't have to do it with a cross buck and an old rip saw. I have huge respect for the old timers that have done it that way.