Wow, I can't thank you enough.
About quadratt and maths, I know they are two different things but since maths can be a mixer/attenuverter I asked about the redundancy of quadratt in the previous setup.
I knew rainmaker was too big for this setup and I was looking for reasons to keep it 😆.
I don't get why temps utile is better than Pam in this context but I'll study more both and try to understand why.
Thank you again for your in-depth reply.