IMO it's overkill.
By the time you have the long runs spaced evenly with 1/2 the space again around the perimeter, the cross pieces and extra tee's won't do anything to help in your efficiency.
Plus depending on the material used, breaking it down for cleaning and re-assembling it would be a pain in the ass.
I have a cpvc manifold with 4 long runs, dri fit together for ease of assembly and cleaning, and regularly get between 82 and 86 percent efficiency.
Just saying
Bull