OverHaulin - US TV Program on Sky - autumnboy
Watched a few of these programs. Interesting what they can do to restore some of the classic's.

But I saw them on a few projects cutting spring coils with a rotary cutting disc to shorten them and removing the shaped coil end.

I've always thought this was a no no, as the coil ends are shaped to suit the coil seating on the suspension.
OverHaulin - US TV Program on Sky - Gromit {P}
Seem to recall a comment on Pimp My Ride (US version) that many custom shops do cut down springs - but should replace them instead for the reason you've just given.

- Gromit