I am running GDR suspension on my Fx with the correct springs for my weight(210 geared up).48 in the fork and an 8.0 in the rear, also a 4mm spacer in the shock. The bike handles very well and takes the bumps great also BUT the steering accuracy is vague at best when I encounter soft dry deep sandy sections, any hard or packed terrain does not show any negitave issues. My fork is slid up to the 2nd line and I am running 43mm static and 118mm rider sag as perscribed by the tuner. I am thinking that 35mm of ststic would give more steering percision and this is my issue? Any guys riding alot of sand want to comment.