Ive been using Fournales since 2004. On CBR1000F, CB1300 & now the CT.
I'm a big ### (160kg) and chop and change all the time from Just me to me + Pillion to Me + Gear offroad. The Fournales is the only one that easily adjusts to every situation.
I have a few probs with Using Sprung SHocks in the past. Being a bargearse means a stiff spring, but then when you are on it, the big bumps are absorbed well, but it transmits every little bump through. The fournales has a vale so that no matter how stiff it is pump up it will still soak up small bumps as well as the big ones.
Also it cannot bottom out.
The other is price. The Fournales was 487 pounds, Quite cheep really. With Air shick the dampening is always matched to the air pressure so no need to ### around with high & low speed compression & rebound to get it right.
Also the shocks themselves are bullet proof and can take a real hiding offroad and are fully rebuildable.