I have a Rino 530 too & love it. Out here in the West, our timber is thinner with lots of openings, so it works great in almost any situation. Back in the south, the thick canopy was problematic last season, but I only used it one day. I think this problem would be inherit with all GPS's, and more so with cheaper ones. I agree with Carlos--the 530 is the way to go. The battery will last for days just using the GPS, weather radio, etc. My battery goes down a lot faster when I'm using the radio & tracking device to see others on the screen.