You can get both as a calibrated set, and you can split them. There are a ton of clips in the 'Players' section, and if you do a search of the the 'Pickup' forum for Nailbomb vs Warpig you'll end up with a lot of reading material. Here's a description from Tim on the Warpig I lifted from another post.
"The Warpig is quite a versatile beast. Not only does it produce a seriuos high gain tone, easily the match of an '81 for saturated gain-it's got a fantastic tone too. Also, with both coils being in the region of DC11.25K each, it splits down really well and the parallel tones are brilliant. For rock and metal it's a serious silly grin humbucker as it almost plays itself-the twin screw coil design ensures a great bottom end, the mids are strong without being spikey and there's clarity in the highs with no fizz. The biggest surpirse for such a high gainer is that clean tones are very useable too-the neck pickup in parallel just has to be heard to be believed."
And here's Tim on the Nailbomb
"....Nailbomb, it'll really add some meat to your bright guitar without compromising clarity. I wind them with plain enamel wire and power it with a vintage cut(longer)unpolished Alnico V magnet. The tone is organic and very punchy-if you want to get heard this is the one.
And welcome to the forum
:twisted: