I've bought a couple pairs for different coaches of mine but I don't use them myself as I don't do enough pad holding to justify me buying mitts when I already have a decent enough pair. I could PM you pics of them if you wanted. I think maybe @Cheap Shot or @beaglepuss have them mayyyybe.. unsure though..
As for why Winning don't sell them, maybe Winning already feel they're at their manufacturing capacity without offering up micro mitts to the public, or maybe it's an image thing.
Firstly thanks for your reply and yes feel free to PM some pics. It's a shame about Winnings not offering them but these seem a good alternative and at a reasonable price.