[BondoMan]

For every inch you compress the spring you increase the resistance force. The more you compress the spring the more resistance force is applied. It's at the end of the travel you notice the spring change more than the beginning.

Adding preload doesn’t compress the spring, it extends the shock and increases ride height.
Linear springs do not change rate anywhere in their compression. They only change the resistive force.

 

[BondoMan]

Think about it it raises the vehicle but you're turning the rings down so at the end of compression there is more spring compression therefore more resistance.

Yes at full compression there is more spring force, but the rate is still the same.

 

[BondoMan]

You are insane. Go add a inch of preload and tell me you can’t tell a difference in the ride

Any changes you would feel would have to do with suspension geometry, the spring rate and load on the spring are the exact same.