Tyres

Cooper ST's (or BFG AT's) for the road and sand and BFG muddies for the mud, no question about it.

You wouldn't be Jim Conway by any chance ?

I have at present, Yokohama A/T+11 for the road and BFG MT for everything else.

And at this stage don't see the need to change to anything else. Both sets in 265/75/16.

jim
285/75/16 bfg a/t and bfg m/t in my opinion
both give you little bit more height with minimal speedo difference
a/t are suitable for quite a bit of trails etc ,sand ,deserts and long distance dirt travel.
also depends on what mud and rough stuff you talk about
if real serious stuff then may go simex or baja claws etc for the mud but (generally) these are not the best for bitumen travel to and from your play areas
so many variables and opinions(bit like toyotas nissan thing

If the vehicle is new i would stick with the Grandtrek for the road and Goodyear MTR for everything else. When the grandtrek wear out worry about the road tyre then. May as well get your money's worth out bthe tyres

Stick with a pure Highway pattern or AT's for one set and an STT/MTR for the other set. Can see no point in ST's for highway when you have STT's for dirt, not enough difference in capability to warrant the hassle of swapping sets.
A standard Highway tyre at low pressure is fine in the sand.

Changed afew vehicles from Coopers to MTRs of late, and they cant believe the MTR drives better, turns in better, much nicer in the wet, and is no where near as noisy, and they had STT's and ST's fitted.

If running 2 sets the Good Year ATR is the road/sand go for sure, and if wanting a pure play/mud tyre, the Super swamper LTB 34 x 10.5 / 16.

[Not affiliated with any brand, only those that work best we have tested I recommend]

HT's for the road, drive best, handles conditions on road the best...

either Swampers, JT2's, Centipedes, Claws for offroad, depending where you live, and what terrain you encounter most. Why go with a MT for offroad, when most use them onroad? Go with a serious offroad tire.

I run 33x12.5 MTR's on road, and 34x11.5 (measure as 35s) Simex JT2's offroad.

For on road and sand I would go the Cooper ST. Also good for some unexpected mud.

Cooper ST

For offroad I would go Simex Extreme Trekker II, throughly a kick arse tire.

Simex Extreme Trekker

After much experiencein this area (similar quandry to you earlier this year) stick with standard tyres on vehicle for road and sand (14 psi in sand for perormance) and go for a MT +++ spec for the tough stuff. Unless you are doing extremely hard stuf with the MT go for a less expensive option than coopers.

Cheers,

Pete

I've taken the Cooper ST option for day to day and sand/easy mud use.

I'm thinking of another set for rocks and harder mud - and look like getting a set of cheapo Motorway Mongrels (re-birthed, not re-tread) for the harder stuff. I usually bust a tyre on these little trips (ripped the sidewalls out of 5 BFG muddies over the last 3 years) so I reckon that these are cheap enough to throw away when I do another. I accept the fact that they have limitations, but for a second set of tyres that I expect to kill anyway - they are my best bet at this stage.

Thanks to all for the advice. Current tyres are BFG All Terrains. They have been up the Oodnadatta track (heavily loaded), across the Simpson (French Line), through the corner country and around Broken Hill twice, around the Blue Mountains a bit, across to Adelaide a couple of times and collectively done 55,000 kms. The first four are still on the road (probably still have +15,000 left) and the two spares have only collected dust.
A friend wanted to get rid of his spare rims having gone to alloys so I got the four of them for $50. Next big trip is the Anne Beadell Hwy. So I guess I'll put on a set of Muddies for the second set and stay with what I have as the highway set.

Again, many thanks to all.