Anyway...I've measured and tested to no end using various tools. I've been in this house for 26 years. I know my room pretty well and it is indeed terrible. It has seen electrostatic, isodynamique as well as electrodynamic speakers over the years, all more or less in the same exact positions, give or take a few centimeters. These Sopras are just exciting the room modes much too much in reference to my fixed listening position. I'm not moving house, nor will we redo the interior decorations or change the layout of the living room. Therefore a solution must be identified, which includes banishing the entire system from the living room as an option. It doesn't work here at all, insisting in full desperation mode seems pointless and counterproductive.
As for GIK, they do not do consultations outside of US and UK. Their online "consultation" is a joke at worst and at best it's a gimmick to lure unsuspecting victims into buying their products. I know this for a FACT as I have received their proposition based on my initial request which included room photos, a room design software mock-up and several .mdat files from REW. They responded with a proposition for me to buy 12, as in TWELVE, soffit products (the biggest and bulkiest they make) and to position them here, there, and pretty much everywhere in the room with no apparent rhyme or reason. If you know what the GIK soffit product is, and if you imagine 12 of them in a medium sized room...you know somebody has been abusing some controlled substances. Frankly, their proposition was anything but scientific. So back to the drawing board. Brgds.