Shock Valving

[cegusman]

Looking at Bilstein shocks, they have 3 different valving options:
255/70
298/36
270/50

What does this mean, and what is recomended?

 

[ntsqd]

What's it going on?
255/70 is the common leaf sprung single damper per tire valving.

 

[cegusman]

Going on this: