I actually got to check out the pgm7 in person at the clinic, it's got a chunk of wood sanded out at the lower horn of the cutaway. It's for the purpose of letting paul's hand be free as there was some obstruction before...other moods was that there was some grey grip tape situated where the output jack was. Paul likes to rest his guitar on he leg when he does those wide streches so that prevents the guitar from slipping. I believe the pickups are both tonezone 7s.
And then there's the weird tuning, the top 4 strings, 7 6 5 4 are all tuned in octaves...and the rest of the string are left to standard intervals.