Hey All,<br /><br />I currently have a HumminBird 727 Fish Finder that came rigged with my Lowe FS175 Boat.<br /><br />The unit is defective and HumminBird is sending a replacement.<br /><br />After using it a few times, I can honestly say that the only thing I use it for it Water surface temp, and Debth, Since I don't really understand the sonar readings, and the unit will often show fish but we don't usually catch anything when it shows them, so I don't really consider it a tool.<br /><br />I am thinking of putting the 727 in the front to use with the trolling motor, and upgreading to a color unit. The color units look soo much clearer, and hopefully will be easier to understand....<br /><br />I am hoping to get GPS maps with the color unit, not just track plotting, I want to see maps of the lakes. Hopefully with all USA lakes.<br /><br />The nudge nudge, wink wink I got from the Electronics guy at Gander Mountain was that HumminBird fish finders were not soo good, and that Lowrance were much better units.<br /><br />I can't say I know enough about them to make an educated choice.<br /><br />I want to spend no more than $500-$600 on this unit, and would like it to be somewhat easy to use/understand.<br /><br />I want atleast dual beam, with atleast 500 Watts RMS (4000 Watts Peek-to-peek), Which is what my current Humminbird 727 has. <br /><br />My primary use will be under 100 feet of depth, but I want to be able to go on big water, like the great lakes, and have the unit still fully functional with the deap waters.<br /><br />I hope I have provided enough information to help me, but if not just ask I will answer whatever I can.<br /><br />Thanks,<br /><br />-TheChad