I use a WristMaster II (3 velcro straps, plus a metal insert in the palm and a support for the back of the hand), and I am very content with it. My problem is a weak wrist, I tend to break it back upon the downswing, killing the hook in the roots.
The WristMaster II is a very nice thing - light, easily adjustable and leaves your fingers totally free. For me, tghis is very important, since I need to "feel" the ball and like to make finger adjustments.
I also have a big Pro Release device, but I do not fare well with these large supports. I get totally lose ball control, feel like a passenger. I do get more revolutions on the ball, though, but I pay for it with inconsistency. So far, the smaller Wristmaster II is way enough for me and my stroker game on any condition.
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DizzyFugu --- Reporting from Germany
"All that we see or seem, is but a dream within a dream..." - Edgar Allen Poe