OK, let me try and explain this as best I can...
Top-tier combinations are not needed for testing here because I am comparing results between two customs to determine the difference in performance between two parts.
If B:D is more stable than W145WD, then regardless of what the semi-aggressive control custom actually is, B:D will always have a higher win rate than W145.
I could use a competitive Flash Attack custom, or I could use a stock Ray Gil. Either way, if I test sufficiently, B:D will end up with a lower KO rate than W145WD.
You see what I'm saying? When the same amount of force is applied to both customs, B:D will always come out on top, regardless of where that force comes from.
I used Pegasis because it was able to, very consistently, apply the
amount of force that I needed against each custom in order to evaluate the results.
By using MF-H Pegasis W145CS, we are applying the same amount of force to each setup (B:D and W145WD), and comparing results to see which setup
handles the force more effectively.
That's the best I can explain it.
Now, if we were testing Burn B:D to determine whether or not it was competitive, we would need to test against top-tier customs, obviously. But we're simply comparing one specific part to another, not testing a whole combination.
Here's a good way to think about it;
we aren't testing B:D against Pegasis. We're testing it against W145WD, but to do that, we need to put them up against the
same opponent and compare their performances to decide which one works better.
That's all I can say for now. I've got stuff to do.