jewel tone locks

I love spinning from locks--mohair, Wensleydale, etc. I usually just tease them out a bit before spinning but, if you look close (click for big), you can see how these are just full of veggie matter. I need to open them up a bit more. I grasp them in the middle, lay it against my leg and tap lightly with my favorite dog comb (has tines that spin so they don't pull and break the fiber so easily) held not as if I were combing the hair but vertically, with the comb handle parallel with the fiber. Tap, tap, tap until it's open and most of the dirt falls out. Flip the lock around and repeat on the other end. Spin. Repeat.