here is the size of the springs i got this info from
http://team-spoon.bravehost.com/
The spring wire size chart
to tell them apart without the little stickers:
10.5lb .045"
12.5lb .047"
15lb .052"
17.5lb .054"
20lb .056"
25lb .060"
30lb .063"
35lb .066"
42.5lb .071"
50lb .072"
60lb .073"
there are also some set up sheets