Congrats on the LP D-Rock. I had Probuckers (and several other features included in that model) in a Sheraton II Pro. I think they were the Probucker II and III models. I had planned on replacing them immediately until I tried them thru my rig. They were high quality pickups on par with my 57 classics, just a little hotter but still rich and buttery sounding. I really liked them, and the coil split tones were great. The locking bridge was nice quality and the tusq nut was great. Wasn't sure if mine was setup by the factory or after the fact by the original owner (it was still mint) but the action was buzz free and shred-level low, so low I actually had to raise it to play blues on it. Never had that happen before.
Please post a follow up when you get it. I hope it suits you well!