Two Issues on the Jamestown ride:
I agree most of Newcomb is not paved. In past years it was not on the maps. I did try to warm people at the ride but the group was rather fragmented prior to leaving to ride.
FYI currently Tavern road rt 168 is closed between Parkman and Burton. This may be why someone changed the route to Newcomb. I would recommend 528 south to shed then New mob to Georgia. 528 had a wide buggy lane.
I road the full 90 mile Jamestown ride. In past years our return route started by going thru some side streets and thru the Pymatuning park area including a cool bridge by the lake. Our new route eliminated that part which had always been the highlight of the ride. Sorry I don’t have details for the old route. Hopefully someone else does.