pgbnh wrote:

Is there real functionalitydifference between 430 and 530?

Perhaps the most annoying aspect of the 430 for me is that one can display
only four data fields on the map page. I want five: next waypoint,
distance to next waypoint, groundspeed, desired track, track.

I assume that the larger 530 can do better.

- Andrew

P.S. I learned flying with a GPS behind a BK-94 with some large
MFD. So I was spoiled by my early GPS experience. Little
things like drawing a faint line for actual track on the
display make a big difference, and the 430 doesn't do that.