There is a lot of info on here about AT tread tyres. I only drive on road and sand so HT are fine for me. Just about to hit 30,000 Kim's and the khumos have had it. I'm looking at the cooper HT plus or the Dunlop grandtrek AT20 they're called AT but the info has them listed (and they look like) HT tread. Any comments or other suggestions? I'm really only considering OEM 18" size.