signing on to the class action. pros and cons

Have received an email tonight from Slater and Gordon again urging me to sign the Legal Cost Agreement and the Funding Agreement, which means that I would be retaining S & G to act on my behalf.

What do other claimants think about this ? It appears to be optional, and they seem to say the non-signers will be no worse off; and, to quote the email, "there is no financial disadvantage in retaining Slater & Gordon & the funder".

I was involved in the Aristocrat class action a few years ago, and I don't recall having to sign such documents then. From memory, I recouped about 55% of my losses.

I would really appreciate some guidance on this. What are the pros and cons ?

And please, lets skip the talk about the class action disadvantaging shareholders in general. My partner and I both incurred significant losses in 2008.