Hello, my boat has a furuno FCV 1100 fishfinder, which needs a new transducer. The gps is an old Garmin 4212. Which sometimes freezes up on me, I’m thinking of going a couple different ways. Just replacing the old furuno with a fv588, or getting the Garmin 7612sxv with chirp or simrad nss12 evo3. With chirp. Has anyone used both the Garmin and simrad? Heading down to west marine to look at both.