Just got back from a ten-day ride of the Blue Ridge Parkway, and assorted roads in Eastern Tennessee.
This is the fifth time I've ridden this area, but the first time during Spring; all our other trips were in the Fall.
There were some good points to Spring riding (lots of blooms, wildlife sightings), but overall I have to say that I like late August/early September much better. The roads are in better shape, the pollen levels are lower, and there seems to be less traffic later in the year. Temperatures are about perfect either time, but we had more rain on this May trip than we've ever had on a September trip.
There were lots of groups of riders out, and quite a few were eclectic bunches like ourselves (1 1150GS Adventure, 1 ST1100, and 1 Yamaha R1). There friendly quotient was very high, with about 95% of even the Harley folks returning waves.
Here are the photos of the trip: