Thanks to you all for the suggestions.
My main concern is once I have the speakers on the podiums, how to best make small adjustments to either toe-in, or location (I don’t think that makes me “extremely compulsive”). I do plan on, as suggested, taping the floor, around the speakers, to mark the position of where to place the podiums. Hopefully then, once I put the speakers on the podiums, they will be in the same position as they were prior to the podium installation.
My floor is carpet, and what I am thinking is putting furniture gliders under the podium feet to facilitate moving the podiums once the speakers are on the podiums (carefully, with a friends assistance). I’ll check out the Everbilt Furniture Sliders as suggested.
Again, thank you all for your guidance!