I just packed for my 1st tour in 20 years and we have severe rain/thunderstorms predicted for at least the first 2 days of our 4 day trip. I'm looking at the Bob my son borrowed and having one big dry bag is a lot easier than water proofing 4 panniers and and any outside compartments!

I envision I'll envy him at the end of the day when he can haul all his gear into the shelter with one pass. I may not envy him on hills, because a trailer - with heavy dry bag - will almost always work out to more weight that 4 panniers with the extra front rack.

If I fit his bike, may we will change mounts during the ride so we can experience the difference on the same tour - although I am carrying more weight and stuff than him.