FKS are gonna be more bombproof, Deadbolts are lighter (Tryrolia based binding). I had deadbolts on my Walls, worked well, sometimes got a bit annoying cause it was kinda easy to push down the release, I have Pivot 14s (same as FKS 140s) on my Afterbangs, absolutely love them
My friend has Agent 80s and he HATES them (but I'm pretty sure they don't fit his feet properly), they're pretty light, but also pretty stiff. If the boot fits (properly) wear it...
~WAKIN' UP THE NEIGHBORHOOD TONIGHT!~