just got four rivers in today. two gl two opto 165-175. they all fly pretty much the same. they remind me of fresh star tls or fresh pro line leopards right now. pretty stable new, but i can see them getting more dynamic as they season in like the aforementioned discs. i let some big arms at the course throw them and they had the same results. one of the things that surprised me the most is that even when i shanked it and got a bad drive, it was consistently like 30 feet further than a comparable terrible drive.
unrelated: also got some flows in, and holy shit they are perfect out of the box. they are comets you can lay in to.
big ups to hoey for some choice discs.