I know there are many discussions on servicing the lionel O22 and similar switches. And some complaints on the modern ones.
I have put a O22 and related switches Web page together. I reference some of the other discussions and add 1 important element that has often been missing, pictures. I have added a few tips of my own.
I have examined 072 and O22 modern switches, many variants of the O22 postwar switches and a pair of the 711 prewar O72 switches. The web page is growing as I get more information.
This all started in my quest to find reliable lionel O72 switches. Now if it can be fixed to be reliable, I can do it and I have left notes for others. If something needs more explanation, let me know.