It just occured to me that with all of the people on here just learning. That some may have a need for new springs in the near future. I read on another artist's website that back in the day they used to make their own springs. If you know inone that works in a wharehouse you can take some old banding strap from a pallet and cut and shape it to your liking and get some emory cloth from an auto parts store (Oreilly's Auto Parts sells it by the foot if you have one near you) and take the bures of the edges and bam you have a new set of springs. This is good for fine tuning your machines.