DJM 900NXS2 Setup w/Numark V7s, VDJ

Hi hoping a kind soul can help me with a setup!  I recently replaced my A&H XONE:42 mixer with a DJM900NXS2.  I connected my two Numark V7s (via link) to it.  What is the proper setup for the numark dj players and the djm?  I am not using a 10baseT switch, just V7s via LINK together, USB A to my iMac running VDJ, and the Deck A on Ch2 (Master) and Deck B on Ch3.

I had reports of users not being able to hear all stereo channels on my Deck B when mixing thru a stream.  I could not repro this on my outputs and it sounded okay.  

Here's a little more detail:

DJM-900NXS2 -> USB A -> iMac 10.10OSX 

V7 Link Deck A (Master) -> V7 Deck B 

V7 USB -> iMac 10.10OSX -> configured Numark Core Audio in VDJ8Pro Ch 2 and ch 3

V7 Deck A -> DJM900NXS2 CH2

V7 Deck A's Deck B output -> DJM900NXS2 CH3

Just wanted to find out if I configured and set this up correctly or suggestions.  What is the correct output for VDJ8PRO to use in this case? Should I use Link between the two numark V7s like I did with my old XONE:42?

Thank you for your time!  One day I'll be able to afford the cdjs that go with this maybe ;-) !!

Pics attached ..