Dave,
I completed my Stereomour about 4 months or so ago and have been using a pair of Cornwalls (1984) - even with a very live room, all wood/glass/stone, wood floors, 18-24 foot ceilings of wood, very limited damping with furniture and rugs - they have performed just beautiful. My listening position is usually 10-12 feet.
When using my Reduction as input, my listening volume is usually around the 11-1 o'clock position depending on the type of music I am enjoying. Strings, Jazz, Female vocals sound really sweet through the Cornwalls. I recently completed an Intergration upgrade to my Reduction and the bass and mid range improved significantly. Highly recommended upgrade if you are using a reduction phono preamp.
When using my Mac Mini/DAC as input, playing mainly AIFF files (24/96), my listening volume is usually around the 9-11 o'clock position. Again the Stereomour performs very well with Cornwalls.
Now having said that, about a 8 weeks or so ago, I ordered a pair of Orca Minis and the Dungeness Max from Clark at Blumenstein Audio. I received the Minis first and ran them with my S.E.X. amp in my office space and immediately fell in love with Orca minis - so much so - that I found myself listening to the Orca's more frequently. My listening position was near field (about 3 feet).
I received my Dungeness Max a couple of weeks ago and put it in my S.E.X. system and frankly was blown away by the combination. As result of that --- I had to try it out with my Stereomour. Oh man was I surprised, even with a large room, slightly lower listening volume - I have to say I am loving the Orca Minis / Dungeness Max combination with my Stereomour. If you enjoy Strings, Nina, Female Vocals, you will absolutely love the Orca Minis.
In fact, I think so highly of them, after recently discussing with Clark, I have ordered another pair of Mini's and I have ordered and anxiously am awaiting a BeePree 300B and Paramount 300B kit.
In the end, I will be comparing my Stereomour with the Paramount setup between the Orca Minis and Cornwalls to decide my final setups -- I have already decided that there is nothing better (IMHO) for the S.E.X. than the Orca minis.
In my view you can't go wrong with a pair of Cornwalls or the Orca Minis/Dungeness Max (you need the Dungeness with the Stereomour) -- But if I had to chose only 1, I would have to go with the Orca mini setup. Give Clark a call at Blumenstein, I find his feedback to very helpful. Good luck.
Bob