I have the NT05's on mine currently. I think
@vortecd is correct. It's actually a very stable tire on the road through turns. I've never had any other DR's and I haven't had them out in the rain, so I can't compare but there's absolutely no wallow. I'll probably try the 555's next.
Maybe you should get what's available. With oil going up,up,up get them before they're priced like 2x4's
.