I have never heard of the stitch regulators? I did look it up and it seems very interesting.
But My machine is a vintage Kenmore 15813450, so I don't think I could use one on my machine
I seen the price on this little gadget $500.00. For me that is a years worth of fabric.
No way I could afford one of those. Sure wish I could, and I could use on on my machine.
Oh well I can dream