Federal SS595 RSRs would be worth a look too.
Ive heard right horror stories about those, they caught my eye as they particular market the steel sidewall and how stiff they are but guys on MLR have literally had the tyre fall apart on them as if they were faulty, yet it happened too quite a few which says they could be a risky bet, or not suited to anything with real power.
.
.
)
).