Proofing 6x8 negatives on 8x10 paper, any issues?

quick question:

Can you proof a roll of 6x8cm negatives onto an 8x10 sheet of paper w/o any hassle(entire roll of negatives not fitting onto the paper)?

I currently use Hasselblad, and all (12) 6x6 negatives proof onto 8x10 paper no problem.

What about (9) 6x8 negatives from a 120 roll, in the same sleeves(3 strips of 3, instead of 3 strips of 4-6x6 negatives/strip)

Only asking b/c I really dislike buying multiple sizes of paper(one of the reasons I sold my RZ kit, great camera, but prefer 3x4(6x8) proportions to the 4x5(6x7) ratios).

__Edit(addition):I'm asking because I'm considering a Fuji 680 system, and not sure of negative spacing.__

thx,

Dan