---smackay, let me explain to you what happened here. craigsub had been using his SVS PC+ cylinder subs for a while, placed in the corner. The new box SVS sub that he ordered (which ended up the pb2+ as a pair) was to be placed in the corner, per manufacturer recommendation. Then craigsub decided to order dual VTF-3 MKII's. Dr. Hsu's recommended placement position was new. Craigsub moved his SVS cylinder sub in that position and it sounded much better there. When the pb2+ arrived, he knew that the VTF-3 MKII's would have the sound quality edge in the manufacturer recommended positions. So he moved the pb2+ in approximately the same position as the VTF-3 MKII's, but on the other side of the couch. The rules were made up as he went.
It is most realistic for a non-pro reviewer to test both subs placed and setup as recommended by the manufacturer. This mimics the setup when each sub is set up independently of one another. This was ultimately not implemented in the listening tests, for very obvious reasons. Hsu was not going to be allowed to get a leg up in any way, even if they deserved it based on Dr. Hsu's acumen.
---craigsub, that's funny, I always thought you were on SVS's board of directors or at least now an honorary member, and I am sure you will be privy to all of their future secrets with this unbelievable promotion. On the other hand, I don't know anything about Hsu's flagships, nice try :D