According to Bob's instruction, I masked off my 4x5 neg carrier yesterday and did some printing.
I have to say that I was astounded by the difference in sharpness compared to the glassless carrier. Grain was MUCH more apparent, but looked very nice. The problem now is all the dust that is also visible. I never thought I'd have to spot my prints as much as is now evident. It makes me wonder if the extra sharpness is worth it, as I never really felt I was lacking sharpness prior to this...

Thanks for the advice everyone.

- Thomas