i was thinking of replacing the leather piping on the top of my noe. when i called the boutique to ask about it, they said that i had the option to do just one part (and have it be uneven with the rest of the leather), or do all of it (and have the bag look brand new). she said that if i do the one part, since it will be uneven with the older parts, that i could use saddle soap to try and darken the leather a bit. any of you, who have done the saddle soap thing, have you gotten the results you've wanted in the first try? also, is it something that you can repeat if it's not as dark as you'd want it to be?