Am i not correct in thinking that some rally drivers have their brakes set up with a rear bias, so that they can effectively handbrake turn around corners without having to use the handbrake?
I was going to send you a link to a one armed downhiller setup, but i couldnt be bothered.
You COULD do it, yes no problem, but im not sure why you would. In all honesty is sounds rubbish. when you brake hard, the biased would be what? front 70%? then the fork dives, the rear lifts and slips? or worse your front wheel slips and goes to wash out, but you cant release it without releasing the rear as well?
you are still using two levers, so why make one lever dependent on the other lever? you would have to think about power on one hand, and bias on the other? I think brake bias would be very very important myself.
One lever for both brakes i could maybe understand, for lazy city bikes, or roadies, but even then, do you need your other hand for something?