Congrats on the new wheels!
That tread pattern - they keep making it because it works!
Personally, I can't stand using those kind of tires, but then again, I'm always trying to pull stuff that's heavier than the tractor, too. I prefer either bog tires (knobbies) or ATV off-road service tires. Of course, I don't really care about my grass, either. I drag cars and junk across it all the time, and drive my truck into/out of my yard like it's a driveway!
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"