THE (that's a snazzy acronym right there! ), have a look at my project log, or Khorn's Fists for examples of wolves (there are a few other good ones, just search for space wolves) to see how we use the washes on our armies. If they are GW's washes (not inks) then just slap on the Badab Black liberally and let it dry naturally. If that's too dark for you, you could water it down about 25:75 water:wash, which is what I am dong these days.
alternatively you could use a thin brush and just carefully apply it in the crevices.
those new minis are looking good and certainly more colourful! Keep it up.