First of all, congrats on your very nice MDX!
I see your logic on 7500 miles on dino or synth, but I suggest that you consider that synth provides more benefits than a extra-long OCI. You live in NY, so you have a variety of seasonal extremes. I am in TN and park my cars outside, so see that also. Given that, my experience with my sludge-prone '97 Camry, and other useful comments on this board, I suggest that dino oil in a modern engine should be changed every 5 months or 5000 miles max.
As a side note, you will see on this board that Hondas / Acuras are "easy on oil" compared to other car brands. I have 3 Hondas ('00 Odyssey, '03 Civic, '06 Accord V6) and agree with that to some extent, but don't use that as the reason to push to longer OCI or use "cheap" oil. These are pretty high-tech engines with tight tolerances, so good clean oil is really helpful, in my opinion. It is possible to sludge a Honda, and I don't think you want to risk that.
Of course if you trade cars often then it really doesn't matter about dino vs synth or 5000 miles vs 7500 miles. Perhaps you can tell us more about your driving habits (city vs highway), annual mileage, etc.
Best Wishes as you motor along!