I did exactly this about a month ago. TT is a Debut vacuum. Cart is a Benz Ruby 2.
With the Graham, I found myself constantly futzing around with all the adjustments, mostly due to sibilance that I could not eliminate by changing cartridge alignment, VTA, VTF, azimuth, etc. The first thing I noticed after changing to the Vector was that the dreaded sibilance had disappeared. Moreover, there was a significant improvement in overall resolution. I have to assume that along with sibilance, the Graham was producing (or allowing) other distortions which were obscuring what was actually in the grooves. Speaking of grooves, the Vector (with Benz Ruby 2) produces NO groove noise. To call dynamics 'explosive' would imply distortion, so suffice it to say that things now get louder and faster without any breakup. I was skeptical about the idea of "no mistracking" and "reduces record wear" but am now a true believer. It is liberating to be comfortable playing valuable/rare LP's without worrying about degrading the vinyl with every play.
Overall, the Debut/Vector combo seems to take the record itself out of the equation, letting the stylus trace the groove as perfectly as I have experienced. Many times there is no perception of hearing the vinyl record itself, only the music contained therein. Because of this, I no longer feel the need to keep 'tweaking' and can just enjoy. Yes, the Graham was more easy to adjust, but after a while the adjusting just became frustrating. I have only readjusted VTA once, and have left it alone since. Folks with non-vacuum turntables who fiddle ceaselessly with VTA adjustments are probably chasing their tails (IMHO) as no LP is truly flat, causing VTA to change constantly.
I am still puzzled by the lack of publicity this arm receives. I would postulate that if Basis were a one-trick-pony and just made Vectors, there would be just as much (if not more) buzz about the Vector as there is regarding the Graham, Schroeder, etc. Hopefully more people without Basis tables will get to try the arm on their tables too.