best part about a bypass on a leaf kit, you can actually smooth out some of the chatter bumps (if not all) while keeping your bottom out control there. smooth body shock only goes so far in comparison. Dialed for dialed, bypass still beats smooth body.
I ran SAW on both my old race trucks and a few trucks I built for customers. I never had an issue but this was before they sold to AFE which caused a whole new set of issues. Also i had a set of Kusters with leduc bypass tubes and never had an issue with them> BUT i had a friend with a set and basically everytime he would adjust the bypass tubes it would start leaking since the square o rings wouldn't seal properly.