Difference between using 3 and 4 springs on a floyd

[LexLuthier]

I just want to add that all trem springs are not created equal. Some springs have more tension than others, plus if they have been used a lot they lose some tension.

[Sunbane]

||| or |||| has a tiny easy movement zone. then gets stiff as you dive.
/|\ retains similar tension all the way down.

That's a really interesting hypothesis. I'll have to try it out for myself.

If it works, I figure that the "warble-people" would prefer straight springs, while anti-warble people would like them angled.