Has anyone purchased and used the fishing chips sold by Florida Sportsman Mag. I was thinking of purchasing one for my Garmin but when it comes to the area the chip covers the description is pretty vague. I think the one I'd need is the big bend area but that's the only description given. Would that cover the area from Cedar Key down to Homosassa? If you've purchased this would you please let me know how far north and south the chip covers.