i already have 2 licences and vbull running on 2 sites.
I know of some sites which do just what i am after. It requires some modification of the scripts to sort out cookies, sessions and so on. I am happy to noindex one of the instances.
yeh i’ll have a look on vbull site.. I saw some stuff on there ages ago regarding this but it required a lot of template edits and was for an old version of vbull..