Grats on your Hydra 8 Puma!
For those interested the 3rd gen series the Hydra Alpha 2,4,6 is the new kid on the block below the reference series Triton, Talos, Cyclops. It does not have the Noise isolation compound placed on the incoming/outgoing AC but it has much more advanced filters between components than even the V-Ray MK II. Price has gone up though compared to the old 2,4,6 hydras.
I started out with two hydra 6 then traded up one to the hydra 8 and now went all in for the Triton. I'm very impressed with what Shunyata have achieved, the noise just dropped like a rock with the Triton.