Can you go anywhere and see if your favorite lakes are on the add-on
cards? I have been a little skeptical of combo units, had some trouble
early on with my Lowrance GPS, had to send it back a couple of times,
had to finally get pretty ugly with them. They kept sending my old unit
back, and it would work one or two trips and crap out again - after I
told them I was going to start giving them bad PR at every occasion, they
finally sent me a new one, and it has been trouble-free so far. But things
are getting more reliable it seems, so that may no longer be a concern -
but I would have hated to be without sonar while they were working on my
GPS. Ideally, two combo units would be my solution, but $$$ - maybe when
I win a lottery or something.
Shoals Area Crappie Association