I thought of that one, but didn't want to mess with the spring, in case I got bad results out of the deal... I don't have a spare. When the original spring broke, I had to get shoes and spring together as a set.
Hey, is any of this stuff still available online?

Zeen, eBay is where most of us got our spare parts... If you look back through earlier messages here, you will see all the vendors that sold parts to us, and sometimes read comments on what people thought of them... One vendor I bought from often was in Asia, but they shipped fast and were very reliable to me.