Raise it up for a day or two and see if you like the look and ride. You can always lower it back down. I'd definitely jack up the front end before you adjust to prevent any damage to the factory keys. There is a ton of pressure on those threads.
I found myself at a happy medium between stock and fully raised. I'm at a shade under 23" right now. I like some of the factory rake of the H3 as it was designed, but not to the degree that the torsion bars will slump to after a couple years.
Also, if you decide to keep it raised I'd recommend installing a spacer under the factory bumpstop/dampener. I used a piece of 3/8" thick rubber bushing that I attached to the control arm with adhesive. A spacer made from aluminum or steel would work well also. The dampener just barely makes contact with the spacer at ride height. Having it set up like this as the factory designed keeps the front end from diving, keeps body roll in check on cornering, and makes for a more compliant ride all-around.
There are extended dampeners available in the aftermarket, but they are made of a harder poly material and make the ride a bit rougher than utilizing the factory dampener.