I don't use it usually cos my foot can't reach the damn thing the lever is at such an awkard angle and you cant adjust it ! (like the handlebars) it's the only thing i don't like about my duke the lack of adjustability on the bars and back brake.
and if i do manage to get to the brake lever it feels like a sponge anyway!!!
you shouldn't have to actually break something on the bars (the locking pin) to adjust them !!!!