Shimano Will Not give you any more information than you will find on their European Website (PDF Exploded Diagrams)
I have designed and built Carbon Fiber Mountain Bikes and the oly way i found was to buy the products dismantle them measure them and draw them - often the best way to get a good...
Most Preload Setup is around 10% as most of the work the shock should do is absorbing impact and shock (Positive) any more than this and you will bottom out of smaller hits.
However the setup should be such that it does bottom out on the largest compression it is likley to encounter. this way...
