pack
Stay with your day pack, inspite of its drawbacks it`s still the best way to go. I have tried rack trunks, panniers and other devices over the years and still prefer the day pack. If you will use some small utility straps through the loops on your panniers and around the rack this will stop your panniers flying off, its the only way you can tour off road, how do you think mt. bike tourers keep them on.!!?