Well my Mono Trial is the shizzzzzzz! :D
When I first got it, it was very very grabby but was rather spongey, infact it was uber spongey and I didn't really like the feeling of it but I just left it as it was, didn't really want to muck about with it just incase I fecked it up. But now I've had the brake for ages and now its 100 times better... it feels awesome and grips just the same if not better, its a fookin ace brake!!!!! :-
Go buy one... mines is 160mm rotor btw (Y) (Y)
Watson