 The multiple plate reverse clutch and double wrap low band design offered a slight buffer to engagement to prevent harshness even under high apply pressures.A quite sophisticated valve body timed shifts and apply pressures carefully in Drive range to ensure smoothness and prevent 'hunting' between gears, which is a common complaint of small cars with automatic transmission.Corvair Powerglides had a good reputation for reliability and were ordered on a large majority of Corvair passenger cars.