You can get around fine in many areas around the ramps. Abbots and metlock bridge are good and are navigated by a lot of guys with your setup.
If you want closer to atlanta you have jones bridge and Johnson ferry.
Take your time and go when the water is clear the fist few times.
As and invite to you guys, if you want to get on the river at some point let me know with some notice we can probably work out. My 15 foot jet will take 2 adult and a child, always enjoy having kids on the boat.
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"A Boy is all God has to make a Man."