Dry suits

[jasondbaker]

I'm planning on buying a dry suit over the next month. My preference is to buy local to ensure a good fit, service, etc. I want a quality shell suit that is primarily for FW open water dives -- maybe a dozen wreck dives a year. I prefer suits with a "sock" instead of a boot. That way I can use different boot options. I am unsure whether to go with a back zip or self-donning. My semi-dry is back zip and I have no problems with it. Here are the suits I'm looking at:

Whites Nexus 2003
Dive Rite 905
Andy's DS1 (tech cut)
DUI TLS350 (cave cut)

I have also considered the FifthD dry suits. Those are basically modified Andy's suits. They might not be available outside of Seattle. I plan to order custom made undies (300 weight) from a shop in Seattle.

I'm looking for any recommendations, including dive shops to purchase the suit.