Here is the bag system I will be using when I head out on my bicycling tour next spring/summer except for the front panniers. I added the greenspan rack on the BOB yak trailer that allows the mounting of the back panniers. The Topeck trunk bag will load light which decreases the weight on the back tire.
I will also have medium size front panniers along with this bag system. I will be loading the bike down this week and taking it out for a ride to see how the Long Haul Trucker handles.
I commuted to the new location where I will be living over the winter. I rode against a nasty head wind that caused a struggle most of the 20 miles. However, my overall average speed was 10.4 mph even though my speed decreased to 7-9 mph once in awhile because the wind. There are very few hills on this commute from 13th ave NE Minneapolis to 100th ave. The time travel was one hour and forty minutes.
I road with loaded down front panniers and my back rack trunk bag (pictured above) on todays commute.