If he's having someone else do these, without either dodging/burning or contrast masking the OP may be in for some contrast pain, alright.
Originally Posted by Iwagoshi
I find reds and yellows are not only beautiful on RA4 papers like Fuji Crystal Archive and Supra Endura, as well, but more accurately saturated. Magentas and especially purples are often garish on Ciba/Ilfochrome, often freakishly so from Velvia 50 originals. Exposures specifically tailored to Ciba/Ilfochrome would be a little flat for other uses, 4 stops or less contrast range.