You'll have to be smarter in that boat. Doing things like launching in Balus to fish flat. Launching in Van pugh to fish flowery, or Shoal to fish that side of the lake. I wouldn't reccomend launching in Six and fishing Shoal or Flowery cause you'll have to cross a major traffic area. It's possible, but in a peak traffic time on Lanier you will feel very small and slow in that boat.
I have a 16 foot bass tracker and it's dangerous. I would stay in creeks. If you hit one of those 3 foot swells wrong I think your sunk.
I have a 16/48 aluminum boat that is very stable with a 25 hp motor.
I went out early one Saturday morning in May on Lake Allatoona. Going out was fine but getting back to the boat ramp in the afternoon was nuts. It was not the wind but the huge wakes kicked up by large boats. A 40 foot boat kicks up a large wave. And when there are several large boats going in different directions it gets like a washing machine.
I don't go on Allatoona or Lanier on Saturdays or Sundays from May through September. Fortunately I get some time off during the week and it is not bad on weekdays.
If I want to fish on the weekend in the summer I find a river.