Wish I could go with you but I'm way too busy, so here's what I would do. I would take the 33 bypass down to 374 across from the Valero station. I would follow 374 all the way to 664. You will pass rock house which is a nice place to stop and take a break. At 664 I would turn right and go to South Bloomingville and turn left on 56. I would take 56 over to 278 and turn left and take that into Nelsonville. I would turn right on old 33 in Nelsonville follow it to 78 and turn left. I would take 78 all the way to Malta which is right across the river from McConnelsville. Do not cross the river. Turn right at the light in Malta. That is N. Main St. Turn right again on third Street which becomes a Malta Hill Road and that will take you to 377. Turn left. Follow 377 past 555 and it becomes 550. At this point you could turn left on 555 which is the best section of that road in my opinion and follow it south and then head west but what I would do is pass it take 550 all the way to 33 between Athens and Nelsonville. At this point, you can turn right and take 33 back on the slab or go thru Athens and pick up 56 all the way back into Hocking. If you don't stop much you could probably do all of that in four hours. Explore the map in that area and you can make it a shorter jaunt if you want to, but those are some really fun clean roads without any big surprises.