Doesnt hurt to explore options mate, there are plenty of good tyres out there, every tyre company has to start somewhere and not so long ago no one would have put lowly Federals on their car if they wanted any form of grip, but the rsr's are highly regarded, same goes for the Nankang's, another budget brand moving up it would seem, not read a bad report from anyone who has actually used them during some digging around yesterday. Obviously you get some usually moronic ditchfinder comments, on another well known forum i saw a lovely reply from Docwra to one such foolish comment.