Thanks. I will order the cart today. I already have a 3500c but have a west coast chart. As Harlequin should be on the Crouch a week today I need to get a new cart, and the 28XG seems to be the same price as the 1/2 country ones so i might as well order one of those!
cripes - my 3500c is pretty much instantaneous redraw with both Navionics or Nautipath charting. even zooming in 6 button presses it will almost keep up each time with redraw.