NFO and dyes

[ThisIsMyFirstRodeo]

Ok, simple question (maybe)…

Does water- vs oil-based dye affect how you use NFO? Is the typical oil/water separation even a concern?

Ive been watching some videos from the University of YouTube, and I’ve noticed that they’re all using Fiebings Pro, and not water-based (I prefer the Pro dye myself, but I happen to have a water-based dye for this project), and I don’t want to ruin a piece by lifting or smearing the dye.  
 

TIA,

AZR

[ThisIsMyFirstRodeo]

As a follow-up, I guess, is there any change in technique when using both oil- and water-based dyes?

Wow I really feel like a noob again after finally getting some NFO from Tandy (they couldn’t get any from the warehouse for MONTHS!)…

— AZR

[billybopp]

It makes no difference that I have noticed, other than you might get a little more pigment coming up as you rub in the NFO.  

- Bill

[TonyV]

A light application of NFO the day before dying helps restore moisture to the leather, which helps the leather to take the dye.  When the dye is dry, buff it with a clean rag before applying top coat.