From a R&D standpoint this is child's play. The variation in the crossectional area of the tank from full to empty doesn't mean squat. Put 1 gallon in the tank and take a measurement from the sender... add a gallon, take another measurement... keep going till full. Test ten senders in this way. If you want to do a real good job use 1/10 gallon increments and test 100 senders. Use the info to program the guage to ACCURATELY display how much fuel there is in the tank. Could probably release a software update for the bike to fix this problem, and a few others, and not charge us for it. Then we could all complain about something else.
2013 Cross Country Tour: Custom paint, stage 1 exhaust, Lloydz Hi-Flow air filter, cams (HOH-VM1-DR), timing gear (HOH-PTS), Power Commander V, Auto Tune module, Gustafson flip shield, OEM passenger backrest with Cycle Ops luggage rack, Vic HID, heel shifter, Rockford amp, Infinity speakers all around.
2011 Cross Country: Burnt and Traded