I'm looking to swap over to Garmin units.. which model would be best at the console and what transducer will be the choice for the South USA areas? I didn't realize they had different transducers so I assume the G52 is what I need.. also how well do they make out on the mapping.. my next issue is that I hardly fish any new water that I don't know so is the GPS that big of an issue or just preference .. I'm thinking about the Striker plus 9sv for the side vu at the wheel.