Basically a one for one swap out except for the stabiliser plug/washer which had to be replaced on the secondary main. How long will this slotted one last as it has a smaller amount of contact surface and most likely will wear away faster.
Used the entire kit's parts and has made the wife happy again.
What can I say? It's a handle guys! It goes around and around and the thingo goes up and down in response. If you need one, buy one. If you're looking for an ornament to put on the mantelpiece though, get yourself something else.