My advice counters others (-which is ok!

) but I often prefer to restore original springs rather than replace with 'Chinesium Spring Steel' reproductions. They are easy to restore with methods just as you have mentioned. I will attach a segment of the factory print that shows the correct radius for each leaf. You will likely need to spend some time drawing out the correct arc and using that as a gauge to check your progress. We have a CNC plasma table, so we just cut a set of sweeps to use as templates for each spring leaf. Again, it does not take much time to actually do the re-arcing. I say go for it.
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