I like my P4 more then my P3p, period. Yes I already had the better DBS mod, yes I have the new bigger one, and yes I've spent about $250 just in cabling and roof mount antennas to fly further, I still think my P4 is faster, sleeker with better features, then my dumb P3p, and distance is exactly the same. (I did have the latest model 323a bird) but I am using the 300b remote and not the 300c, or the GL300A remote for that matter.
I'll note the early model P3Ps do seem to be the furthest flyers. But I stand in my backyard surrounded by 90' trees and homes and I went over 2 miles just the other night using the handheld setup not the Hawking's that are going on the roof.
So tell me then why the P3p guys always seem to try and justify their purchase, I don't care or make a stink, I think it's more a thing for the P3 guys, the P4 guys don't care.