Wes - I just checked the weight of 20 $7 strikes on two different scales and all my $7 strikes are between .81 and .82 TROY OZ. They are between .89 and .90 in regular ozs. I just had a coin dealer who is down the street from me check the weight on his scale and he comes up with the same weight.
I don't have just the center of a $10 strike to weigh so I can't comment on that weight.
On the Club web site I am not sure how they arrived at the weights they have listed but and I still don't know any dealers who would buy silver by anything but troy weight.
Walt