I guess I'm kind of a dolt about this - how do you use it? I expected my renders to zoom now vs 32bit but it seems the same ?

Its still using the same amount of memory as P8... no more than 1.5gb of 8gb.

Come on ! What's the secret to unleash the beast I paid too much money for? LOL 

on a side note - i just realized i can still edit my scene while rendering in background. That's flipping awesome!