Think of (football/soccer/basketball/whatever) ... just because you buy the most-expensive players, there's no guarantee that it'll result in a superior
team.
The usual
stress test ...
Edit: Oh, I just got aware that your revised function doesn't use any internal default-pp any more, hence the comparison above isn't fair.
New testfile, now with three different variants of dfttestMC: a) no pp, b) pp=blur(1.53).blur(1.53), c) pp=fft3dfilter(sigma=5/7/7/4,bt=3).
Note that all 4 filters use the
same temporal radius of '2'. Also note that c) uses exactly-the-same prefilter as the simple MDegrain2 that's shown for comparison.
No change in regards to teamplay, though.