The question I have is, is I it okay to connect the mpcs and the master control centers up to a SR power cell 6 se which has the preamp, dac and transport hooked up to it as well or would it be better for the active shielding mpcs and master control centers to be plugged into its own isolated power strip?
Yes. Beyond okay, its advisable. Preferred. Active Shielding is highly responsive to improvements in power. The better the source the better the MPC to power center works. I've had both.
Check out my system. https://systems.audiogon.com/systems/8367 Look close. Notice the Active Shielding coming out of the Medusa connected to the CTS speaker cables? That's because I took 4 MPCs, removed the plastic covers, had Michael Spallone upgrade diodes and caps, then hardwired them into the conditioner. These upgrades elevated Active performance like you would not believe. Huge improvement. Highly recommended.
Just wondering if you have to be careful where you plug them in?
Not at all. The MPC is nothing more than a transformer, cap, and diodes. It does nothing but step down the line 110V AC to the 29V DC used on the cables. Current draw is nil. You might see a tiny spark sometimes when connecting. Relax. Its 29V. No big. Kinda cool actually.
One last question I promise, does it matter which way the mpc is plugged into the socket or can it be flipped either way?
Read the above again and think about it. Does not matter. They even omit the usual "only one way" plug where one is wider than the other so they can fit and share one outlet.
Sorry for the lengthy drawn out questions and thanks in advance for any assistance.
Not at all. Look up Michael Spallone here on site, search his MPC mods, have him do yours. Huge improvement. Incredibly cost-effective.