ok so what brake do you guys use most often front or rear? I know if I slam on the rear when Im riding than it skids for a long time. what if I was to do it with the front? is there any danger in flipping over the handle bars or something? whats the right way to use the front brake? should I use both or 1 more than the other? Whats the right way to be using both front and rear brakes?