NegFix Profile for CineStill 50/Kodak Vision 3 50D?

[keithb_b]

I have started experimenting in my Leicas with CineStill 50, which is Kodak Vision 3 50D cross-processed in C41. I have been using the Portra 160NC profile, as I believe that Portra uses very similar emulsions to Vision 3, but it would be good if there could be a dedicated profile for CineStill 50—or if anyone could tell me which of the stock profiles in Ai Studio 8 is best to use.

Thanks,
Keith