I have a Tin Lizzie Ram and it works good. I originally had a Tin Lizzie 18 that I purchased used and had a lot of tension problems with it. I found Texas Quilt Machines in Spring, Texas. They fixed the tension and later gave me a great trade-in for the Ram. My Ram had a hard-to-find electronic problem and Texas Quilt Machines worked tirelessly to fix it. Great service. The stitch regulator on both my old machine and new machine worked just fine.
PM me if you want to chat about it.