Since control isn't important, the bottom wrestler isn't expected to do anything but stall. Only at the college level does folkstyle control time equate to extra points. Another difference related to control is the ability in freestyle to score points without having control of your oponent. Some moves such as tilts, front headlocks from the knees, and crotch lifts while under attack can score continuously without ever gaining control. The pictures show first a common set-up for a front headlock without being in control while the second picture shows a crotch lift being used to counter a leg attack.
Slips are another major difference between freestyle and folkstyle.
Also, for this reason, the attacker's move does not end until there is a slip or the referee blows the whistle. The wrestler being attacked must actually take the move away by reversing direction or preventing the attacker from making it back to his belly. Simply stopping a move with the attacker exposed does not constitute an exposure. Current rules allow the wrestling to continue after a slip with no points scored to the person on top. Competitions Tournaments are held under the sanction of various organizations for insurance reasons.