This is a good disc. I throw about 250 to 270 ft on a flat field. I'm older, so I have a lot of lighter weight discs. For me this disc is pretty stable. In no wind it will fly flat and the 1 fade gives it a nice small but reliable finish. In a 5 to 10 mph headwind at full power I can get it to flip up from a baby hyzer (5 to 10 deg) to flat. It's new, so it might get a little less stable at it beats in. The 6 glide is debatable. I have a lot of Roadrunners and Sidewinders that are all glide of 5 and the Heat is definitely domier, but for some reason the Roadrunners and Sidewinders go further (maybe less drag). The turn of -3 seems about right because all my Roadrunners (even my Halo) turn more and the Roadrunner is a -4 turn so that makes sense. The Heat flies most like my Gstar Sidewinder which has the same -3 turn as the Heat. Sidewinders are notoriously more stable than their numbers, so mine in Gstar plastic, which has an under stable bias, flys most like the Heat. It has just a touch more stability than the Heat.

Heat is great as my understable driver. Personally I like the X plastic. I thought the Z plastic would be more stable, but the Z plastic was really about the same.

Good reliable disc that can do pretty much anything.