Do you have a GPS. Do you have lots of those Way points loaded up and now they don't make sense to you? Do you get confused by what seems to make sense last year. Well I found a YOUTUBE video from a Walleye fisherman giving a seminar. He discusses what I think is good information on Managing your GPS reading. So if your Interested and need some help Here is the YOUTUBE thread. I don't know him I am gaining nothing from this just though others might like to know. He has a total of 6 videos so I will link you to the first one and you can find the rest ... Hope it helps...
Getting the most out of your GPS 1 - YouTube

Good fishing