Thanks for those pictures showing how you play disc golf, that certainly makes sense. I can see now why you would want a tracker on your disc so you could find it. The course we have here is nothing like that. It is just set in the park and always mowed, there are no obstructions. I guess there is a creek that you have to throw across several times though. It's too bad about all the chemicals stinking up the place and washing down in the water anyway. We do need to treat our environment better.