Purchased for a friend with a slower arm speed, 200ft max rhbh distance, and a heavily influenced ultimate I/O (hyzer) release. Disc weight approx.150g. They were able to get 10-15% (25 feet) more distance with this disc. It wouldn't quite flip up and turn right with this much power (and a fair amount of hyzer) would but flatten and push forward much better than other understable putters/mids they have used. I would highly recommend for those with up to 250ft of distance and a natural hyzer throw. Subjectively we both liked the feel of the Opto plastic.
