I received replacement hooks from GoWesty for the Wasserstopper rain fly. I had complained that original hooks held on to the gutter poorly. Good customer service!
The replacements do hook on to the rain gutter much more securely, but I haven’t had the chance to fully test with them attached to fly.
My best pic of original hooks, they end up hanging on by fingernails.
Replacement hook.
shooftie 
#1 by joel Salter on June 9, 2012 - 10:14 pm
Thanks for posting the pictures and review of the fly hooks.
#2 by albell on June 10, 2012 - 7:09 am
You’re welcome Joel. Do you have one of the flys? Don’t you agree about the front strap being less than great?
cheers
ab