That full power spin start was not so good for a machine that did not have a suspension system and was not bolted down. The other combos that used a variable sheave pulley system to increase the speed from tumble to spin had a slow enough acceleration (and spin) that you did not get the sudden lurch, but they would walk. Even the Duomatic did something to minimize the tendency of the mechanism to lurch as it went into the slow speed first stage of the spin. I think Bendix did something like not letting the motor energize the start windings when the added load on the tranny caused the motor's speed to slow. I am not sure if that is right, but I remember reading of something like that.
Greg, you are so right about the difference in noise level between the suspended mechanism in the Bendix and the rest of the combos where every moving part transmitted noise down through the floor.
WP combos tried to control machine movement by using a bar that went from side to side at the back of the machine through which the drive shaft ran with the drum on one side and the pulley on the other. Everything seemed to be frozen in place, but if the drum started spinning with an unbalanced load, the drum shaft pivoted from side to side. Excessive pivoting caused the end of the bar to hit an air-filled bladder switch mounted on the machine frame. This interrupted power to the little wind up motor that pulled the pulley up to the spin position. It unwound and the tub slowed to tumble and redistribute until the air bladder refilled and completed the circuit to the motor which wound the chain for the variable sheave pulley, but as Robert showed in his video, the timer was not delayed by this switch and even once the circuit was closed, it took a while to bring the tub back up to top spin speed so sometimes spins were skipped entirely. In the early machines, this bar was too weak and flexed instead of remaining rigid. Because of that, it would not hit the unbalance switch and the combo would go for a walk, often to the limit of its plumbing and/or power connections and sometimes into a position that blocked a door from opening, like into a laundry room or, less seriously, maybe the back door or the door from the garage into the kitchen. At least with the last two cases, there was another door by which you could gain entry to move the thing back into position. GE and Easy were smart to have the cups that screwed to the floor for the front feet of the machines. The undercounter GE was somewhat better at water extraction than the free standing model because the machine was installed on a base plate that was screwed to the floor, into beams when possible. The combo was then moved into position by sliding its feet into tracks in this plate which helped hold it in place and hold it down. The GE combos had a speed controller in the left front corner of the machine. It was attached to the leveling leg and ticked during the spins, depending on how much the cabinet was moving up and down. If it ticked too much, it dropped the spin back to tumble to redistribute. You could get the freestanding model to spin better by sitting on that corner.
Can you imagine spins so slow that the spin slowed three times to, in the manufacturer's words, allow items that were not against the drum to have a chance to be positioned against the drum for the next spin so that they might have more water spun out of them? The interruptions and redistributions also took advantage of the load being lighter after the first amount of water was extracted so that the fabrics tumbled in a more open pattern making a more even distribution possible. Each item's lighter weight also meant that uneveness in distribution caused less of an unbalanced detriment to spin. It was surprising, even at the slow spin speed, to see how much water gushed out of the drain hose in the initial part of the spin.
Regarding recalls, Hotpoint sure must have had excellent records on who bought their combos because they seem to have successfully pulled every unit sold. Maytag did not want to anger customers (far cry from recent history) when they decided that they did not want to continue support for the combos so they gave customers the choice. A new TOL pair was a very generous exchange.