Problem with the whole being on pts is how do you define it? Several people from the same guild could be pugging on pts, either together or seperatrly with others. That experience gives them atleast a small headstart, and yet they may not be penalised, wheras a guild fortunate to have a full 8man squad on pts will be highlighted.
I understand the desire for the seperation or highlighting of pts experienced guilds, but I just think its a bit tough to define when one guild could have like 5 players on PTS, and not be called a pts guild, yet having those 5 people experienced when it goes live certainly gives them a big edge over guilds where nobody played on pts.
Edit: course if you think of a good way of doing it, then do share