I just noticed this and I will pass on my method since I do most of the tractor sitting around here. I hate turning as well, but I avoid some by mowing pastures like I drag an arena. I turn at the halfway point of the long side, on my next pass I mow one pass past half. As I move up the field, my length stays the same. I will turn left on occasion and catch the edge, making a figure eight sort of pass. Don't know if that makes sense.
We have a sharp corner in one area due to trees, and I back into the corner, shred out, repeat. I shred far enough out so that I can make the corner easily. It is a bit tedious but goes fast. We have 30 and 40 year old oaks that have low canopies and I have to back in to easily shred under them.