hope mono trials tend to be good for around 3-4 months before becoming a complete nightmare, if you want disc, go cable, go BB7. simple to fix, cheep, super powerful when run with a 203mm rotor. as for your rear brake, i run a 'new shape' maggie and its alrite, but there faaar from great. everytime they need a propper adjust you have to fork out another £4 for new plastic washers, they slip and the hold isnt amazing. As soon as mine breaks (which inevitably it will) im converting to V. Not so much bite but the hold is awesome and as you complained about a bit of brake slip id advice investing in a good V. shimanos shake temselves to pieces in 10minutes so get an avid, anything sd5 or above is good, of if your feeling super flush get an ultimate! hope this helps josh