Originally posted by anstratdubh1979:[..]
P-90's are humbucker size. They are also single coil pickups. I think that the P-94's are single coil also. They won't sound as dark and rich as a humbucker but the P-90 sound (and assuming it's upgraded P-94 counterpart) do offer some great tones. Think "Billie Joe" from Green Day. And that ain't a bad thing
I believe P90's are a bit smaller, which is why a lot of guys buy the 56 epi goldtops, then they have to rout the wood a bit to fit humbuckers in.
"The P-94 is a unique combination that provides the best of both worlds - the classic Gibson P-90 sound in a traditional humbucker-size housing. Replacing a humbucker with the P-94 requires no routing or other damaging modifications to the guitar. "
But yeah P90's are awesome. I used to own a les paul that had them in (can't remember the model or the brand) and I loved em'. They're basically like a humbucker and a strat single coil put together, at least that's how I hear em'. Excited to get them!

Try guessing the chords on your own, firstly start by guessing the "main" note (with the small E string works better), that will be the root note of the chord most of the times. For example, when I first played DIsappearing Act this morning, first note I guessed was the E string on the 6th fret (--> A#). When you're more trained you can guess the full chords (and its modifications like minor, seventh, etc) just by knowking the progression it's in, or viceversa.
but, again, thanx sergio