I have noticed that some of my discs are bent out of shape sometimes. I am not sure if it is becuase I seem to hit trees all the time or not. More often then not though it is with my putters, DX Aviar or SS Voodoo. I have to carefuly bend them back into shape. How does a disc that is slightly bent affect it's flight? Why is this just with my putters? What causes this and how can I stop it?