The problem with these shapes is that no matter where you put your monitors, they aren't going to sit equidistant from your walls.
Try something like this (edit to suit your space):
This is the 32 channel version with 8 stereo groups and is fully inline, providing 72 inputs at mixdown
The desk was re-capped & re-socketed in 2007
Rack mountable PSU
Buyer collects only from Bristol, UK
£400.00
I've posted this on the Sonar Forum, but it's a bit dead over there at the moment.
My problem: I noticed recently in X2 that neither of the above synths would work.
I have completely reinstalled X2 including deleting the necessary registry keys. I also removed all traces of previous versions...