I'm a long-time daily user of fleeceworks pads, and woolite has killed my pads in the past. I since learned that the leather therapy is really the way to go - that and use a saddle pad under your fleece to minimize the times you have to wash it.
I washed my Thinline sheepskin pad several months ago, and according to their website's instructions, I used Ivory Snow with a front load washing machine. Also, I made sure to air dry the pad. I have a Mattes sheepskin pad as well, and that has held up beautifully through lots of washes and I've mostly used Leather Therapy and Woolite on it.
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