50 miles is pretty easy day on 95% of the comet. The grade is less then 2% in all but a few places. I do a lunch ride every few weeks with some friends. We leave Paulding Chamber at 10:30-11: and usually getting to Rockmart for lunch by no later 12:30. Then back after a nice. Its a 38 mile round trip and it includes the Trellis and the Brushy Mountain tunnel.