I think you miss the point of the servo PJ-

Im pretty sure the servo only moves a linkage to engage a clutch... i.e. moves a lever which gets put into the spinning disc to lock it solid, the force then gets translated into the flipper....

Kind of the like the principal of ramming a metal bar through the spokes of a bike wheel while someone is on it...when the bar locks against the front forks of the bike, the energy is put into throwing the unlucky person of there bike....