Rivnuts from Homestead,PA on 9/29/2022 4:22:04 PM:
Both the GAP and C&O are amenable to a single-wheel bob trailer. The only instances where panniers might be better is if/when you might have to push your bike over any detour terrain or lift it over any downed trees. A single-wheel bob is better than a two-wheel bob in those few instances of effectively single track on the C&O. All that said, there isn’t truly any significant difference in using one versus the other in my opinion.