A700 – ST69 Spring Screw Overview

From Awesomatix USA:
PSS
When rebuilding your dampeners its a good idea to double check / verify which ST69 screw is installed. Modern A800MMX kits include the ST69-00 screw that yields 0% progressive spring rate. Other potential configs are to try which will yield more grip
25% progressive spring rate -- ST69-25 -- the flat end screw with groove on the side
15% progressive spring rate -- ST69-15 -- the flat end screw
0 progressive spring rate -- ST69-00 -- the pointy end screw
Visually identifying the correct ST69 screw is your only way to not fail on the bench!
Suspension Screw Type
Hand in hand with PSS setting is the amount of tension applied to the leaf spring. Moving to a Type 2 configuration is equivalent to a 4mm 'softer' setting. Type 2 is very common with hard springs on the front of a touring car.

Additional detail on dampener configuration found on page 23 of the
A800MMX manual
.

M. Machler

Source: M. Machler