agree with the above. go neutral. i've even stopped using the burgundy cordovan cream because i don't like how uniformly it changes the color of color #8. on my ravello i've only ever used neutral, and started recently using it on my #8 as well. i just got a pair of cigar LHS and i plan to only use neutral on that as well. part of the beauty of shells is how each one has a different hue. neutral won't affect this. creams with pigment will.
good point. only thing i would add is that pigmented creams are useful for finger nail deep scratches that require a little more than just brushing