I had a Lace in X-Link Medium rubber, but a pond vacuumed it in. So, I bought one in Granite because the blue speckled Granite line discs look so awesome. I really miss my Medium X-Link, because the Granite is taking so long to beat in to the sweet spot. The Medium Lace was almost 170 grams; the Granite is only 163 and I could still get the Medium out 50 feet farther. Out of the box, I'd rate it at 14, 5, -1, 2. Once properly beaten in, it's somewhere around 14, 6, -2, 1.
My Granite Lace isn't all the way beat in like the Medium was, but it just doesn't have the same amount of glide overall. It seems to be a more stable rubber composite. Even in a lower weight, I can't hyzer flip the Granite like the Medium, so it doesn't get as much distance. The fade is very dependable, though. It isn't my max distance driver like the Medium was, but it's perfect for those drives that need to fade without skipping. In wet grass it has a nice, little controllable skip and in dry grass it sticks immediately. Granite is probably good for those players that find a max weight Medium to be too flippy.
Vibram discs seem to take longer than most others to beat in because of the insanely durable rubber compound, but they also lose that sweet spot pretty fast and become too flippy for big arms. They should ideally be worked into a rotation after being thrown a lot and not expected to perform perfectly out of the box. It takes many throws for most average arms to beat Vibrams in enough for the natural turn to come into play.
My main throwing partner is a tall guy with long arms and can routinely hyzer flip a max weight Medium Lace on a laser beam well over 400 feet in normal conditions. It's his primary distance driver, so he's constantly having to adjust to it losing stability If he doesn't get enough angle on the hyzer flip release throwing into the wind, it becomes a really long turnover shot. Not everybody has a huge arm like that, but he can't get his other drivers out that far, wind or not. You just have to get the right weight for your arm speed and be patient with it to get your max distance. Eventually, very seasoned Laces might have to be cycled unless tricks like microwaving or boiling in water can be done to retain its original stability.
I'd recommend the Medium Lace at around 165 grams to most players and above 170 for bigger arms. It has a very beautiful flight with its turn and forward penetrating fade. It's such a fast disc that Medium X-Link has the perfect combination of turn and end of flight stability to get the most distance you're capable of getting. You can't beat the combination of distance and durability that the Lace offers.