New to the Site, Puting a Yield Monitor on a 1680 w/maping capabilites. Looking at Ag Leader PF Advantage, just wondering if I should go with the EZ-Guide+ or the EZ-Guide 500 Model ? Would like to EZ-Steer with it also. Can it be move from a combine to a tractor in a reasonable amont of time ? Is anybody doing this ? TIA.