lately i have come to hate bi-cyclists so i can't give you much advice except to not ride 3 abreast on winding, hilly 2 lane backroads like the tourists do around here.
bicyclists pay for 'tours' of Vermont, see a cow and think trucks/cars/tracktor trailers don't drive 60mph+ on 40mph posted roads. can't count the # of times i have almost crashed bkz of idiots on bicycles.
sorry, as an aside, my brothers went from oregon to new hamshire again on bicycles this summer, BUT hey never ride side by side!