Re: Another Floyd Rose question, springs?
My understanding is that the number of springs is dependent only on how much tension there is in the strings, and whether or not you want your Floyd to sit true and level. As you go up in string gauge size, the string tension force increases. Also, if you were to tune up to say F instead of E, your string tension would also increase. When string tension increases you would need to do one of the following to keep your Floyd level:
1. Add Springs
2. Get stiffer springs
3. Tighten the Spring mounting Screws.
4. Or a combination thereof
The reverse is true when you downtune or go to lighter springs. Think of it like a teeter-totter. More strings = more springs.
As far as I know, "angling" the springs a la Jimi H. really doesn't do much, may add some tension, but mainly just looks cool if you leave the cavity open.
Floyd pro's may want to chime in if I'm incorrect... I got thick skin, baby!