D1 is a very fast, over stable driver designed for power throwers. This driver is good for all conditions and flies as well into the wind as it does with the wind. The consistent flight path of this disc makes it a favorite of disc golfers looking not only for a long flight but pinpoint accuracy. The flight path is similar regardless of the weight.
X-Outs or Factory Seconds are discs that may have cosmetic blemishes, stamp drop outs, or other reasons the disc was classified this way. Flight is not affected. These are a great way to try out new plastic at a more affordable price.