Erik, can I pick your brain?
I just took delivery of a V600 scanner and the ANR glass to try and duplicate, to some extent, the quality similar to what you achieve, which is consistently just about as good as I see anywhere you see scanned images being posted on the internet.
The one difference is going to be in the base material as I have been shooting Ilford ISO 50 film, but have some initial rolls of TMAX 400 I plan on running through my Leica M4, M6 and Contax IIA over the next several days.
I think I figured out pretty much all of the software where you described the settings you use. I also own Vuescan and so will almost certainly give it a try too.
Other than adding the white background, do you do any "finishing" work in Photoshop or similar program in terms of touch-up/dust removal/sharpening, or are you just utilizing the controls in the Epson software for histogram, lightness, darkening, etc?
I plan to do a little initial testing with the dust removal both on and then off, figuring the sharper setting overall may be with it off, meaning I'll be left with some touchup work to do.