I think 42 is a nice ride. I think you'll like it. Actually has a curve or two and even some hills. IMO, the section west of Altoona is even better. Stay on 42 approximately 10 miles after crossing Rte 19 in Altoona. Go north on Rte 341A, which is also a nice 15-20 mile back road to Rte 40. Maybe hit Dan's Dam Diner for lunch. Take 40 west about 8 miles to Rte 315 up to Ft McCoy. Ride Safe!
Took this route to 40 really enjoyed 42 and 314A. Thanks to all who contributed.