I don't want this to turn into the archetypal tyre thread (though it probably will

) as tyre choice is largely a matter of personal preference as far as I can tell.
However, my bike came to me with a pair of new decent branded single compound tyres.
Over a fairly short time (3.5k miles ish) the rear has squared off whilst the front is perfect.
Mainly that is due to where I ride ie not too many twisties to keep things right and the rest is down to my weedy riding style, though during my recent 800 mile bimble around Wales I got it back some extent.

So given that I'm not about to move to Wales, would a change to a dual compound tyre be beneficial or is it all smoke an mirrors and I might as well stick with the cheaper single compound tyre