Sock Absorber Lengths

[wbute]

If you are after variability use air bags.
When you say adjustable do you mean damping or weight?
Tough dog are only adjustable for rebound and compression damping. You still need to have the correct springs for load. You can only vary your load capacity easily by airbags.
Dirt bikes have had adjustable suspension for 30 years standard. But you still need to buy the correct springs for your weight plus gear.
Shocks don't carry load.