I have the black extreme version, it's also a great pad. The neoprene makes you work a little more for the rebound. I think the feature I like the most is the plastic rim that allows cross sticking practice.
I really like this pad. I've been using a couple different pads for different things over the past couple years. My main hand workouts have been on the Reflexx pad, usually the bouncy side, sometimes the dead side. For drum set, I've been using the Aquarian Super-Pads; they bring some drum sound into the equation and they have a very realistic feel.
But now with this Prologix Blue Lightning, I'm going to roll (accidental pun, but I'm gonna leave it) with it for a while on the hands stuff. I think the resistance is somewhere between the two sides of the Reflexx pad. I like the large surface (fits nicely in snare stands) and the fact it has a nice rim on it. Very impressed with the build quality, too.
Posted this to YouTube a while ago but forgot to post the link on this thread. Solo 25.
This is my new Prologix Red Storm pad. More rebound than the Blue Lightning. I was surprised at how awkward the higher-rebound pad feels to my hands after playing on high-resistance pads for so long. I think it has to be good to mix things up, so I like having options.