Got this about 10 days ago, and I'm blown away by it.
I love my Sterling JP70s, and I got so curious about the 'real' JP7, I got this, and as much as I love the JP70s, I do have to say, this is a completely different league. Playability, workmanship, sound, feel is just stellar. Much better sustain especially on higher notes as well.
Only slight 'issue' I'm having right now is: when I push down the trem the low b-string comes back sharp. I am not sure what could be causing this. Maybe the strings are not fully stretched in yet? I would not assume the nut slot begin too narrow.
Do you guys lube the nut on your EBMM JP guitars? How is the tuning stability on your trems?
My guess is some nut lubrication will sort you out