That’s interesting testimony.
I was actually aware that the Toyo AT3 is a newer design, with a new compound, etc.
I also like the fact that the Toyo AT3 is a couple of pounds lighter, per tire, in the size we need (P265/70-17), than the Yoko G015. In fact, according to my research, the current tires on my wife’s 4Runner (Bridgestone Dueler H/T) are 38 lbs/ea, while the Toyo AT3 is only 39 lbs/ea (Yoko G015 is 41 lbs/ea).
When you say “grippier”…do you mean on dry roads? Wet? Snow & ice?
The Toyo looks to me like it would do a little better off-road, especially in mud, due to wider spaces between the lugs.
On the other hand, the Yokohama is rated very good in rain, and it’s easy to see why - it’s a traditional 5-rib design, like an all-season, just with chunkier, more jagged lugs.
From experience with the Michelin LTX M/S-2/Defender LTX, I know that the traditional 5-rib design with sipes and side grooves works extraordinarily well in evacuation of standing water at highway speeds, which is something we encounter a LOT down here (not much snow & ice at all, though her parents live in Warsaw, IN, and we do make at least 1 trip up there during winter/snow season per year).
Have you hit much standing water at expressway speeds with those Toyo AT3 In your Jeep?