pace cantilever rocker !!!

[magicmistertea]

having finally got my rc35s on my bike and the attached cantilever rocker im finding it hard to see how it actually works, what is the extra spring for in the packet pace esnt me with the adaptor? is it to tension one cantilever more than the other? i have found a picture on
http://www.retrobike.co.uk/forum/viewtopic.php?t=12569

but im still not sure, any help appreciated thanks

 

[BoyBurning]

Think it's just a return spring isn't it?

 

[justbackdated]

Show us a picture of your set up and i will sort it out[ie tube brace or ally brace RC35]