Most, if not all, USD forks are shorter than conventional forks. I see this changing as more regular and sport-touring bikes are now beginning to come with USD forks but until then....
The RC51 forks are some of the longer Honda USD units out there. Combine that with Honda "gull wing" triples like the cbr929/954/early1000rr that also use the same steering bearings as the VFR and you can make up for much of the shorter design length, still keep the steering geometry in the same ball park, and bolt right on with few issues.
My front end consisted of: rc51 forks, wheel, rotors, axle, spacers, brakes, and fender, a cbr1000rr lower triple, 954 upper, and stock vfr bearings/races. Most folks get rc51 helibars for the max height, you need 50mm clipons, but I found stock rc51 bars flipped over, reversed sides, and slightly bent downwards worked fine.
You can see the 954 gullwing triple and 51 clipon in this shot:
Was the handling better? That's not such an easy question to answer as this wasn't my first attempt at a new front end for the VFR. Bump quality, overall stability and under braking was much better. Handling feel wasn't as good as my first solution: cbr600f4i forks in honda vtec vfr triples. Mainly because the rake/trail figures with that setup were closer to stock while the 51 setup tended to run wide. But the 51 setup also had mucho better brakes. The cbr solution was much cheaper due to supply/demand on the used market.
Bottom line: both GREATLY improved my stock VFR front end that originally only came with rebound damping and mid-90's era brakes. You can search VFR forums for lots of info on the swaps. I'm not the only one to have done it.