I've had great results with the Hydro pads. Still haven't tried the thin ones yet though....maybe when I'm do for a reorder I'll get some.
I really only used the Tangerine and Crimson pads now as the MF pads have replaced the need for the Cyan ones. It's been a while since I've ordered new pads but I'd say I have at least 6-10 cars out of them right now and most are still like new. I do find the Cyan to be less durable than the other two.
I clean on the fly with compressed air and I usually have a 5 gal bucket of water ready to clean the pads as soon as I'm done using them. Spray with a low foaming APC and scrub gently with a pad cleaning brush, rinse well, spin dry on the rotary, then place on a wire rack face down to dry for several days. As long as you care for them properly the should last for a long time.
Key ways to KILL Hydro pads:
-Using them on a DA when they are still damp, wet, or saturated
-Using excess speed on the DA. Anything more than speed 4.5-5 on the GG6 is overkill IMO and you run the risk of cooking your pads if you use higher speeds. On the PCXP you can probably get away with speed 6 but monitor your pad temps. If you have pads where the center has caved in, it's likely from excess heat, which is common with too high of a tool speed, or overusing the pad.
-To much pressure being used with pad cleaning brush
-Snag sharp edge, trim, molding during polishing
My $.02,
Rasky