[Blaser]

The objective is not making the line prettier.

What I understand is there are 2 theories:

1- make the job for the main problem area and don't bother too much about details (apply 1/3rd octave smoothing). Not the very best sound but easier and close enough.

2- OR, Do not apply any smoothing to have better results though more filters will be applied.

I think this is the summary of what has been discussed with an opinion on changing the vertical scale for doing manual tweeks (this won't change anything to the result)

I also believe the reasons for graphs anomalies are generally known, and if they aren't, that won't change a lot as far as the REW ajustment procedures are followed correctly.

And yes, in the end you will have a relatively "better" (or closer to what is initially desired) sound from your sub in a given situation if you have better equalized looking curves (the graphs don't lie).

Of course there could be some variation in sound between using smoothing or not, but when compared smoothing won't be too bad (if discernable) as it makes equalization not address the irrelevant (too small) "anomalies" specially when it is used for movies when only an "acceptable" boom is required.