Tossed a Sail around for a bit on the field today. Had never seen one before. Mine is glitter Z plastic (or whatever DGA calls it). Unknown weight. VERY domey.
This thing reminded me of a light DX Leopard. Other than throwing rollers across the grass (something I never do on the course) this disc had no use to me. It is VIOLENTLY understable, like the most understable driver I've ever seen.
Even releasing from a steep hyzer angle the Sail would corkscrew into the ground. The power requirement on this disc is nonexistent. New players should look at the Sail. It will provide an effortless 325' with exceptional glide.
The Sail seems similar to the Heat, but the Heat will accept way more power without turning and burning.
As for rollers, the Sail seemed to work. I threw a couple that ended up straight. I had zero trouble getting this disc on its rim to roll.
Sail: 9, 6, -5, 1. Yes, I rate this thing -5 on high speed turn. The Sail is super, super understable and I literally couldn't power it down enough to throw a flat air shot with it. Even Mambas and Roadrunners have a better shot of not flipping than this thing. Very floaty, slow driver. 6 glide here is legit. This disc would be a nightmare in the wind.
Good disc for rollers or for extreme beginners, that's about it.