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His experience with suspension pretty much gels with my opinion on this - really of minimal advantage, and it limits your ability to carry front panniers, thus impacting on bike stability. On our Outback Australian and Red Centre tours I did find a friend of mine, with front suspension, travelled a little faster than me on some sections of bad road in the outback - large corrugations, and very rocky road (with 'baby-head' rocks). But these were less than 30kms of a 3500km tour, and less than 20 kms of a 1600km tour.
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I have used a suspension fork on my Nomad when I was pretending that it was a mountain bike. Was not touring, only carrying water, lunch and a few spares and clothes. I was really glad I had the suspension. On one of those trips, I was the only one out of ten that did not have full suspension.
But all of my touring where I was carrying camping gear has been with solid fork. This past summer I planned to do a tour with suspension fork but we concluded that the trail was too tough, instead car camped while we did daily rides on the trails. In other words, I am not ruling out a tour with suspension fork.
This past summer I saw a group of three bike packers that were traveling on a mountain bike trail, they were packed very light with no excess weight, carrying only three days of food. One was full suspension, one had hard tail with suspension fork, and one had no suspension. I thought that was an interesting mix. The photos are their bikes, I do not have mine in the photos.