I bought the new livescope plus 34 unit, and am picking up my chartplotter Tuesday. I have lowrance graphs, so I am buying a 10 inch screen exclusively for livescope. My options are a 1022 GPS unit or the Ultra 102 or 106. Display resolution is better with the Ultra. 1280×800 vs 1024×600. For $500 more, is that extra resolution going to make a huge difference? Any other considerations?