Finally just went ahead and tried it after years of debate with myself as to whether it was a good idea or not.
So far I've had it aired up for 24 hours and emptied a full tank of fuel testing it. Handles bumps and cracks better, even a couple nasty ones around here that used to bottom out the fork and get the rear airborne (now I need to figure out how to improve the rear suspension). All in all the front is much smoother. A side effect is an increase in front ride height of .75" @20PSI slightly more at higher pressure. Personally I like the height increase and the extra 3/4" inch of available wheel travel. While it doesn't seem like much I noticed it immediately when I got on, it does seem to improve the steering geometry (there is a noticeable improvement in cornering that I suspect is a combination of the change in rake and trail as well as the more progressive behavior of the fork). At 30PSI the fork does not feel stiffer as one would expect, in fact it takes bumps far more smoothly than stock.
I will post any issues should there be any, but so far there are none. This seems like a winner for folks unhappy with the stock fork's shortcomings.
This is a very easy and cheap mod, no special tools required, and the parts are available at most auto parts stores.
Step 1. Purchase bolt in valve stems for alloy wheels.
Step 2. Remove the fork caps. (easy enough eh?)
Step 3. Select a drill bit the same size or slightly smaller than the bushings in the stem kit.
Step 4. Set the caps upside down on a hard surface, locate the center and drill them.
Step 5. Remove any rough edges.
Step 6. Install the stem kits in the caps. (A dab of gasket adhesive couldn't hurt.)
Step 7. Reinstall the fork caps.
Step 8. inflate to 10 PSI (after a test ride you can increase or decrease pressure as desired. I have mine at 30PSI.)
Step 9. Take a test ride Adjust pressure as needed.
As you can see by the less weathered area the front forks extend a bit when the pressure is upped. This is at 30PSI at 60 they extend fully at lower pressures they extend a little less.