My experience with either of the Hydro tech pads is that they shred too.
I first tried them with my Rotary, and while they cut great, if you didnt watch them carefully so they didnt get hot, they would start to spit out pieces of foam.
I have had better results with my Meguiars G110V2 random orbital or my Flex VRG/3401. They will last longer with these machines; I dont press down really hard for very long, etc., but eventually, they will still begin to separate and slowly but surely start to throw out chunks of foam.
Just completed a full correction on a '07 GMC 2500HD Truck in beautiful dark green metallic, used 5.5" flat white foam and Meguiars D151 x 2, and had forgotten how nice it was to use a durable, non-shredding pad again!

It was great!
Thanks for posting your results with these new guys - souinds like an interesting concept - but Im not too sure I want to get into more pads that eventually break down sooner than later, if you know what I mean.
Interestingly enough, I have queried other Site owners about these new pads, and the general concensus is - they all knew about them for about a year, and decided they were not going to be "safe" enough for their clientele to buy, so they didnt pick them up when they first came out a year ago...
Good luck, hope they can work out for your needs.
Dan F