Mr. bowhog1, and all ya'll,
I would ask; how much do you weigh? If you are too heavy for the stock fork spring rate, then I would say; adding preload to too soft a spring does not make much if any improvement. But it's cheap.
If you are under 175 or so pounds, the stock springs aren't as big problem as the poor damping. Install or have installed a set of emulators. The improvement in damping will blow your mind. Well, at least impress you.
If you weigh more that that, you'll need heavier springs and the emulators to really fix the mushy front end.
Proper, straight rate springs will give you the best results. Not a progressive wound.
I used to do all the "heavier oils" and adding preload, welding and drilling, etc, etc. Then we started using emulators, doing it right, and have never looked back.
Keep in mind that the front needs to dive, just not so freely.
It should use all the travel, but only on the hardest braking, or biggest landings.