I know this gets discussed a fair amount, but usually it's a bit disjointed here or there, so I wanted to ask a question. I just got my Walnut Strands (and they're beautiful) in the mail. They're perhaps a little darker than I'd like/than I see in pics a lot (as is the case with many people's experience, it seems). I don't want to order the walnut colored AE polish because that seems to darken things further/keep it dark. I'm on the fence between the Neutral and the Cognac colors. I've seen both mentioned as possibilities for "lightening" the leather. Is there an appreciable difference between using one vs. the other? Does the Neutral simply maintain the original color while the Cognac lightens? Or do both technically lighten the leather, but to different degrees?