Dynamic meaning changing / constantly changing? You could put the speakers on wheels until you get it into the exact position you want, and then either lock the wheels or replace them with spikes in hopes you don't move the speaker too much during the replacement process. Using a laser measure would be more convenient and probably more accurate than using a tape measure.
Speaker Positioning
I know from speaker position is critical in achieving the best results from a given system. Is there a dynamic way to measure placement of each speaker to make certain they are the exact same distances from back/side wall, cabinets, seating, etc. beyond a measuring tape and listening to the results? Seems to me if minor differences pay large returns, you could be tinkering with this a long time. Thanks for the indulgence.