[tall terry]

all springs have a set rate the compress and rebound at,,, adding preload,,, extends the suspension to its maximum rebound travel in many cases,,, however since the spring is compressed,, it has less travel,,, it still compresses and rebounds at it's set rate from coilbind to free length...

it's not a difficult concept,,, just hard to understand,, for many of those without an engineering background,, and some with advanced degrees... it is simple physics and math...

a spring with a rate of say,,, 100# per inch,, will push back with 100# per inch, at coilbind or free length.. and any point in between

progressive wound spring rates are different,, the springs are wound at different rates through the length of the spring,,, as they get compressed or rebound the rates change..