I should know this, and I'm a bit embarrassed to ask, but some of the information and advice I've seen is conflicting, so here goes. To help avoid squealing brakes (v-brakes) I know I should 'toe-in' the pads. My question is about which end of the pad is toed-in? a) Is it the end that hits the brake rim first? (Would actually be the back of the pad relative to the whole bike) The other end Oh, and please all agree or I'll get more confused.