Marshall and/or Chuck are the ones I like to work with. Most of us on HKPro have had amazing service from them (although mine has mostly been with mags).
Many times, especially with the P7s, if you ask, they will handpick what they think is the nicest one they have. Or you may have a preference for a really plum slide, or one of the browner ones. Good guys, and always ready to help!
P.S. Thanks Porter! The old guy I used to use raised his prices astronomically, and the new guy doesn't like CDNN. Looks like I'll be making some calls tomorrow. This is an amazing deal - some of the guys on HKPro have received theirs already from this promotion and they are almost all saying these guns look almost brand new. Probably going to grab two more and hard chrome one.