Low water access at Grenada question

At what point will the Main Marina on Grenada become unusable for launching a boat (and actually getting it out to the lake). I have a 17 1/2 PolarKraft (Bass-America) with a 90 hp Mercury motor. Bout 1100 lbs dry.

Anybody know for sure? I have never fished this lake after October before this year.....

If memory serves, starts to get tricky about 195, but I've gotten out in 20' 225 hp at 193 and change

You can make it at 193