moridin - what pads were you using? My experience with aggressive compound brake pads is they wear out ridiculously fast. You are lucky if you get one muddy enduro or two muddy trail rides out of a set. IMO, the stock Kawasaki pads are a good compromise of cost, wear, feel and effectiveness.
BTW, you should be able to replace your allen-head pins with 8mm hex heads. I think Moose makes them, others probably do, too. A little bit of anti-seize on the threads will aid removal later, no matter which pins you use.