As I posted previously these replacement switches can be problem.. We have found some to be shorted and some have varying activation push length. All this points to made in China and inconsistent quality control. I have a collection of 4 or 5 switches bought on-line and each operates differently... Once in awhile I will see an NOS 1 on-line but they want big $$ so spending $15-20 for a Chinese clone may seem like a better deal..
