Prima Gaming Groups?

i remember reading something about restrictions on whoring
Prima skins in the same gaming group? if this is true, is
there a site that lists which Prima skins are affiliated
with each other? my searches haven't turned up much.

reason i'm asking is that i cleared the bonus at Crazy
Poker, and now want to do what seems to be the exact same
bonus at Royal Vegas Poker. Easy enough, but don't want to
bother with it if it isn't possible.

thanks in advance.
-andrew.