Interesting Map, that is one thing I really didn't mess much with was base platforms when I had my Ohms, just goes to show you, one never knows what affects these seemingly simple things will have.
With my Larsen Model 4's, I do have them sitting atop Base isolation platforms from the UK, and then a set of four SD footers between the Base platform and bottom of the speaker cabinets. Seems to work a treat. I am on a slab with laminate wood flooring, which can be an interesting thing to deal with at times, depending on speaker. My Obelisks seem more screwed up n the bass end on this floor. Something I still haven't totally worked out but getting there!
With my Larsen Model 4's, I do have them sitting atop Base isolation platforms from the UK, and then a set of four SD footers between the Base platform and bottom of the speaker cabinets. Seems to work a treat. I am on a slab with laminate wood flooring, which can be an interesting thing to deal with at times, depending on speaker. My Obelisks seem more screwed up n the bass end on this floor. Something I still haven't totally worked out but getting there!