I haven't played with any today. Yesterday I fooled around with the Wards machine I just picked up. Found the problem with the bobbin winder. It was a loose screw so the spring wasn't engaging correctly. Found out the buttonholer function wasn't working and fixed that. That one was a combination of being frozen a bit and the knob was spinning on the shaft so it looked like it was working but was really just sitting there. The frozen knob for the feed dog release is still thwarting my attempts to free it. The set screw for the knob is stuck-I broke a screwdriver in it- it's in a reachable but awkward position making it difficult to get on it securely enough to get any leverage. I'll get it eventually. I also scrubbed the top of the plastic carrying case down with some soft scrub. That got rid of about 90% of the crud and scuff marks on it. I still need to scrub down the base.
This evening I may do some sewing on the quilt I'm making on my Singer 66.
Rodney