Right
... The "reference" of 1" is a lot. Real measurement would be frame to flat level surface or the much easier frame to arm distance before and after. The latter would also give some indication of carried load.
I just wondered if the compression at rest was enough to give any noticeable lift to the front. For sure this would be a factor of how compressed it ended up being in the specific rig. A small increase can make a big difference in handling when the suspension is already heavily compressed.
The progressive spring rate helps compression travel and eliminates abrupt bump-stop contact. This is a good for several reasons. However, I can't help think this is a bit of a bandaid to an underlying issue of less than ideal rake and ride hight that proper springs could "fix" vs. making a condition less bad.