Hey all atm i have a garmin dv70 and was thinking of upgrading as im starting to go offshore ànd dont think its not good enough 4 it as it doesnt pick up bait/ fish when im offshore works fine inside but must not be strong enough 4 outside just wondering if anyone knows if i can just fit a bigger transducer if not wats a good sounder that will work well inside and out want to try dropping baits at browns so need something strong enough 4 that