How about 8:30am at the McDonalds at the Browns Ferry exit (Exit 175) off I-24 West? We can grab a bite, fuel up, pack coolers and be at the trail head and ready to roll out by 9:30. Chime in.
Here are directions for those who haven't been:
Take I-75 North across the GA/TN state line and proceed to the I-75/I-24 split. Take I-24 West towards Nashville. Once you wind around the river on your right, you will get off at Browns Ferry Rd. Turn left and you will see the McDonalds and gas station on your left.
If you don't want to meet at McDonalds, just keep past McDonalds about a mile and you will come to a traffic light. At the light, you will stay straight, which will put you onto Wauhatchie Pike. You will go about a mile and turn right onto Cummings Rd. Follow Cummings Rd. about 3/10 mile past the I-24 bridge and you will turn left into (what looks like) a new subdivision with no houses. You will follow that drive up and around a small "round about" and come to the top of the hill and turn left onto the gravel road. About 500 yds up is where most people unload and it is obvious when you get there.