Tea shopping in a wholesale market in Shenzhen

This subject really is intended here as a starting point to get feedback on the general subject of tea.

I've only visited China three times, and the first two helped lead me to become more and more interested in tea.  After the second I started writing a tea blog, 5 years ago now.  We just visited Hong Kong and Shenzhen and I wrote a post about shopping for tea in a wholesale market there:

http://teaintheancientworld.blogspot.co … china.html

It's not as if that would really help someone sort out what to look for.  Due to language issues and being short on time I bought a few inexpensive versions of sheng pu'er, and picked up a couple of bundled style Da Hong Pao (oolong) and sheng versions that were more of a sample.

The context was odd, that I'd just bought a lot of tea from Western facing vendors based in China, so that I either had that tea on hand back at home (in Bangkok), or maybe one whole order was still on the way.  Those teas were from Farmerleaf (a Jing Mai pu'er specialist), Yunnan Sourcing (probably the highest volume pu'er and mixed type outlet), and Chawang Shop (a Kunming based vendor really worth checking out, selling tea--especially pu'er--that were as good a quality and value as any other source out there).  I've been reviewing some samples from King Tea Mall that also deserves a mention, a special case of a local business reselling to "the West" from other local sources.

There is a next level of sources to be drawn on in China, or maybe a few related types that don't clearly separate into levels.  This wholesale market wasn't necessarily and ideal source but with the right background awareness and judgment it's probably a better resource than people have in other countries.  Without those things purchasing results might be hit and miss, related to quality of teas being sold, versions being exactly what they were represented as, and value.

Is there anything I'm missing for starting points?  Of course with enough insider guidance buying through Taobao would work, but without using leads that could be even more hit and miss.