Yep! The Toy and Mazda spring combo works well. I have done this quite a bit, the trick is getting the staggering, the taper on the ends and the spring rate, since you don't really know what the "stock" springs are, you can pretty much go by feel, and trial and error. The key is to starts with a good main leaf, and a good spring pack and go from there. Also remember that friction between two springs plays a large roll in how much they are going to flex, so don't be afraid of grafite, or a grafite paint if you want to paint them. Alot of good spring companies put a teflon spacer at the ends of a spring to reduce the friction as well. It is pretty much trial and error, so good luck!