The problems with flat vs domey are that you can't get accurate direct comparisons because:
A) when dome height differs between runs, rim shape and nose shape usually differ as well.
C) planetary alignment and horoscope luck
When i speak of "flat tendencies" or "domey tendencies" i think of the bike wheel with handles you probably saw at your local science museum or college physics course. At rest it's easy to turn its axis, when the wheel is spinning it's harder to turn.
If you had 2 bike wheels, 1 with spokes that were flattish leading to the handles and another that was domey/conical going to one handle, you would find the following to be true:
-While it is harder to move the axis of the flatter spoked wheel while it is spinning, once you get it turning it will continue to turn.
-while it is easier to get the axis of conical spoked wheel moving while it is spinning, it will only turn to a critical point, where moving beyond that point will be incredibly difficult.
again, this only works if you know other factors are the same.
I tend to think of these tendencies when comparing different models moreso than different runs of one model.
If you take like the flash, wildcat, early run pearl champ beast, early run pearl champ orc, crush, flat top star destroyer, starfire x, etc. you will find similar shapes to their flight when they are overturned, stalled, not turned over, etc. they also tend to "lock in" height-wise.
Similarly, if you take some notably domey discs like rivers, star eagle x, tl, jls, super domey orcs, domey strikers, flows, etc, you will find different tendencies... How they arch when they turn, lift patterns, etc. That are similar regardless of the disc's rim configuration.
These numbers are in no way quantified on the chart, nor do i wish to add a number since run variance is all over the place.