What I can add is that I have run more than the recommended amount of ZP’s together before without serious issues, and it seems to be more about how much energy it takes your mind to harmonise the different subs together (so less differences between them means less problems). Gaining familiarity with them one at a time before doing them together seems like a solid plan. You can always back off or reduce the time of the loops for each separately if there is a problem. Another way of reducing recon is watching what you feel as you run the three of them together and cutting them shorter to microloops if you start getting a headache or an energy drain.
Don’t be afraid to switch up your stack or make temporary changes. As long as the primary notes remain the same, my experience has been that the mind can handle the gradual adjustments to the stack.
An example I’ve had recently was adding a couple of microloops of DRP . My original plan with that was just to give myself a bit of a kick in the ass on taking action, but with the help of my primary notes (RoS, LB, KB) and taking action (to stay connected to the higher powers and retain responsibility for my own life), it manifested a genuine miracle today for me. I won’t go into detail so as not to jinx it, but I have had two “miracles” or odd events today, and other unusual events in the past involving receiving money I wasn’t expecting.
I suspect the three of them would work well together, just make sure to adjust the length of the loops to match what you feel like you can handle, and rotating which ones you run together to make sure your mind doesn’t get too used to one heavy stack and start stonewalling can help too.