Im having a hard time making a decision on which way to go. I have a Garmin GPSMap 440 and also had a Garmin160C Fishfinder, Unfortunately someone BORROWED my fishfinder from my boat and unless I find out who BorroweD it I dont think they will be returning it any time soon. Anyway I liked the unit but found it to be to small for me to see from the stern of the boat. I was thinking of upgrading to the Furuno FCV 620 but it is considerably more money. Can anyone offer any opinions on which way I should go ? Do I go with another Garmin or the larger display Furuno or something else like (opinions)