Unconventional speaker setups

Recently, I got a REL T/5i sub to mate with the Sonus Faber Guarneri Evolution monitors.  My room is pretty challenging at 9' wide x 10' long with 9' ceilings.  I have bass traps, ceiling panels, and panels on the side walls.  The back behind the listening positioning is about 3' tall, above with it opens up to the rest of my house.  Due to the size off the room I sit with my back right up against this wall.  When I first got the Evolutions a few years ago (!) I just quickly set them up without thinking about it too much because I thought I would get a sub pretty quickly and then I would spend some serious time setting everything up.  Fast forward 2 years and I finally got the sub!  Out came my SPL meter which showed that I had a pretty bad null at 630hz and between 80-250hz.  At these frequencies I was down -4 to -10db.  Initially, I tried positioning the speakers in what I thought were all the logical locations, away from front wall, away from side walls, toe in, etc.  The best I could do was am equilateral set up with the speakers toed in pointing at my shoulders.  However, this still gave me some dips of at least -4db at 800, 630, and 315hz, though my bass response from 63hz and below was good.  I listened to my system in this configuration for a week and did not like what I heard at all.  The was just thin and a bit harsh.  In fact, I could not listen for than 1 hour before my ears actually started hurting.  

So back to the drawing board.  Again I tried all sorts of things with speaker placement. I moved them right up against the front wall, no toe in, massive toe in, toed out, decreased rake, with seating position well into the room, etc.  Things got better but now I had a massive hump at 400, 63, 50, 40hz and a big dip at 630 and 315hz.  Fast forward past some cursing and temper tantrums and I finally found a set up that at least to me sounds very very good.  I am giving up a bit of top end and my speakers do not disappear as well as they did before especially during extreme balance (Left and Right) sections.  However, I happy to compromise to get the wonderfully organic sound I am getting now with tight, punchy mid bass and bass.  My final configuration only has a single -4db dip at 200hz and a +4db hump at 40hz but everywhere else from 1000hz down to 25hz I am +-2db.  Still not perfect but in my case with my room, I am more than happy.

What I ended up with is my speakers in an equilateral triangle, 6.5' apart, 3.5' from the front wall and pointing straight ahead.  Here is the part that really surprised me, my speakers are only 1.2' from the side walls.  I was also surprised that these speakers actually seemed to work better with no toe in.  In fact, the more toe in I tried the worse the dip at 800 and 630hz got.  Maybe this is obvious to some people, at least to me it was surprising. In the future I may consider room correction but for now I am pretty satisfied.  It really goes to show that every room and set up is different and time spent dialing in speaker positioning is definitely worth it.  

Any way, curious to hear if other people have odd (to them at least) speaker set ups.