I have one of their cheaper ones and I can't complain about anything with it. It's got great support.
Most of the folks around here who use diamond either use the same one I do (the one I posted above) or they go ahead and get the natural shade one that's a bit more expensive
DIAMOND WOOL PAD COMPANY - Diamond Wool 1" Contoured Cowboy Pad - NRSworld.com
And I've never really heard about much difference in functionality between the two. I suppose if there was a horse that had really sensitive skin, they might notice a difference between the virgin wool and the regular wool.
Still cheaper than a 5-star though LOL.
Most of the time I use a wool Mayatex blanket next to the horse with the pad on top. And that generally works pretty well for me. But for some reason blankets really travel out from under the pad on Zane, so I have been using a pad alone with him.
I also suspect me may already be getting a saddle mark (just white hairs, not a swelling) but it's hard to tell because he is going gray and has random white hair clusters anyway. But the fact that it is right at the front of the saddle bars (on one side only) makes me think it might be from my saddle......which I thought fit him great. Always a good sweat pattern, or so it seemed.
But that's neither here nor there really. If it's a saddle mark it's from the saddle, not the pad. (I've been using an Impact Gel on him). I have a feeling it's because his hips are unbalanced and maybe that unbalances the saddle. I feel like I'm riding pretty level though. He doesn't "feel" out-of-balance. I've never seriously explored shoeing options because I've been trying to keep him barefoot. Maybe that isn't going to work in the long-haul although right now it's been working fine. Sigh!