i an building a guitar from total sratch and i was wondering how many springs should i use for my tremolo? i have 4 so should i do like 2 open 2. or 1 open 1 open 1. which is better or may it just change the tension?
How many springs depends on the string gauge. What are you going to use? .009?
To be honest... The springs and tightness of the claw are both important factors.

Depends on how loose you want the tremelo.
I use 9 gauge strings, and I only use two springs, with the two screws tightened almost all the way.
Will says:
- SmarterChild - says:
I don't know if I can help it.

Member #6 of the "I play my guitar as high as Tom Morello does" club
2 open 2 should do it but it does depend on how tight the claw is I like to have as many as possible and I think it stays in tune better that way I have 5 in mine and I use 10s.