My company has only done a tiny bit of sim training for unusual attitude recovery.
Anyway, it is very unlikely that any pilot, other than with a V1 engine failure, has ever pushed very hard and fast on any rudder pedal(s). It just does not happen, except in a fighter, attack jet or other aerobatic planes during certain violent manuevers (Julie Clark, Patty Wagstaff, Gene Soucy, Ed Johnson)!
On our older twin-engine narrow-bodies, the rudder restriction (powered by air bellows via small tube on leading edge of vertical stabilizer) begins at about 170 knots and is fully restricted at 300. The book also says that only an inch of rudder pedal movement is available at 300 knots.
