gotta be honest they are great on rocks and hard stuff but in wet grass/mud they are poo , stick with BFG'S dude
As Andy says above, they're good on the road and great on rocks, however, they can be found really wanting in mud.
As a pure road / laning tyre, with occasional off road, I guess they'll be OK. But I've seen people using them off road at Cannock Chase and seen a locker-equiped Disco + Coopers get stuck, where other motors with 'open' diffs and say INSAs or BFGs get through with ease.
Also, over £100 a corner is expensive, there are better deals to be had mate.