OEM-sized LTX MS2 Defenders are installed. No photos, as it's the least exciting tire/setup I've ever installed on anything I have owned, and I'm that much closer to being a dull, old man.
Costco had no issues installing the H-speed-rating tires on the LX; they didn't even bring it up.
They did throw a fit about installing aftermarket TPMS sensors, until I explained to them that I don't want them to program anything, and to stay away from my OBD II port like their lives depended on it (... cause they did).
Initial impressions from the highway drive home are... bland. I drove in with a fairly heavily worn set of Falken AT3Ws in 275/55/20. The Defenders are equivalently quiet, which is actually a nod towards the Falkens, as worn tires are always louder than new ones. There does seem to be a new, audible hum in the 90-120kph speed range, which is surprising. Hopefully that doesn't grow to annoy me, as this speed range is 99% of highway driving around here.
At 38psi cold and suspension in sport, the tires are more comfortable than what I'm used to, but still very compliant at highway speeds. Entered a few highway sweepers at 160kph and under full acceleration - uneventful. No noise, no jitters, stable and planted, holds the line as expected. This is in very dry, sunny weather.
Will see how they do in the longer term.