Marc,
I will try it with those parameters and see if it's any better. If I want to move to 2.5/YV12 I will have to have a denoiser as good as Peachsmoother to convince me...
I used the standard (0,10,10,30) parameters but the source was pretty noisy, analogue tv cap...
I only wish I had the time and knowledge to make filters myself, sounds kind of fun....