I recently purchased xenforo (currently run vB4 on one site), and it gets the job done well enough to get by there. However, upon testing a design for a site I'm developing I've run into issues with large amounts of forums. The datastore and forumcache in vB4 don't play well with 1000+ forums/sub-forums. So, my question is is there anyone out there running that many forums currently on XF? If so, what type (if any) of performance issues have you run into, and have you been able to work around them? Before anyone asks if I need that many forums I'll state simply, yes! With what my requirements are for the design and how the structure must be set up it's a necessity. Thanks in advance for any replies.