I disagree, that can only happen if you print small. When I want a top quality print from the R2400 I print at 360 DPI, and if you print at 11x14, the quality is good but the grain is normally well visible, if you can actually compress a 6x6 neg somewhat, a 14x14 print form the Blad will come out almost grainless and with a better tonality - I think you can even see a difference on screen.
I will attach a couple of shots for a comparison, trying to favour the 35mm - the first is from a Tri-X negative shot with the Makro Planar 100/2 - one of the sharpest lenses I have ever seen
The second is shot on HP5+ with a Hassy and the long end of the 140/280 Variogon, probably the least sharp lens you can put on this camera
I think that even on screen you can see much finer detail and evidently smaller grain.