No problem. NVX can even run on Cat5e so you have more than enough...
I had a grounding issue with using unshielded Cat6 and a POE switch (Injector/power supply) early on. Had to ground the remote units locally - PITA
So unless you need the 8G cable for something else, use that if you plan to power them from a POE+ switch
If you need to reterminate the 8G, I HIGHLY recommend looking at the Belden REVconnect system.
Its the only thing we use for all RJ terminations now and with shielded, Its even a bigger advantage...unless you really enjoy terminating the Crestron Cat7A connectors...HaHa!
Here's the STP termination process:
Here's the easiest source to buy the REV product:
