They were first gen USD forks... they didn't work as well as the '89 conventional forks.I though 1990 was the sweet spot as it came with USD forks?
Those first gen were basically cut down RM forks.
IMHO the 41mm front end on that Gixxer is the best you can get for VRRA without spending cubic dollars
If you want to run USD forks in the VRRA get yourself the Showa USDs that came on the Ducati 900SS of that vintage. They're similar but the metering rod is longer and has better sliders... and I would still prefer the Gixxer parts. (I have three bikes with that Gixxer front end. I like it).