I’m running DHF2 MaxxGrip 2.5 front, DHR2 MaxxTerra 2.4 rear both Exo. I tied with the Dual compound on the rear before, tried the 3C on the rear and have bought the 3C pair again (yep, Tredz could get them both, without having to go to the German shops). Yes it costs a tenner more, but the dual compound lacked straight the line braking and outright grip of the 3C. It’s worn out faster though.
I was nearly able to get this pair from an actual shop (Cycleworks North East, shout out to them) but hey had the DD not the Exo :-)