I have an LTD DV8-R with the Dave Mustaine Active Livewire pickups. It's a quality pickup that resembles the Seymour Duncan JB and Jazz pickups I believe. If you already have that set in your RR3 it may not be worth the switch because they are pretty close.
They sound really bluesy and warm in comparison to a lot of other metal pickups (especially active pickups). They have nice attack and color but don't expect a bone crushing ferocious sound. It's a pretty versatile pickup with a clear strong signal.