In reply to G. Tiger, Esq.:
I like the range of Ergon shaped grips, I use the GP1, even for fairly technical riding, and like the rest that it allows my hands on long flats.
I also tried the Revo suspension grips, to see if it would reduce forearm pain on multiple park downhills: it maybe makes a subtle difference, but not enough to justify the expense and faff of setup for me.