You also need to keep in mind "cover the rear brake" doesn't mean "slam it on" often a little pressure will create enough drag... just realizing brakes and clutches are not on off switches can raise most peoples skills to a new level - people typically figure out the throttle isn't an on off switch fast enough, although I used to ride my street bike that way WFO "on" to go and no throttle "off" for braking - pretty sure my son drove his 50 that way as well LOL!