Zipp's Tangente pads state that they should be set up parallel to the rim, and they do what I would expect any pad set parallel to the rim to do...grab and squeal. Modulation is poor as well.
I won't have a chance to ride the bike with these wheels until I race next, and am going to toe the pads in a little-I figure it can't hurt the performance. Do those of you using cork pads with carbon rims toe the pads in, and what type of experience do you have with squealing/grabbing? I'm a little disappointed as all the reviews of these pads I've seen have been stellar.