Castilian Dulzaina Soundfont: Volume problem and bank and program number rules

Hi

My name is Pedro Acebes and I am a spanish amateur music player. I play a popular folk instrument whose name is Dulzaina ( https://en.wikipedia.org/wiki/Dulzaina or https://es.wikipedia.org/wiki/Dulzaina). More specifically, Castilian Dulzaina. Some examples:
- Playing popular songs: https://www.youtube.com/watch?v=32zqOjlB7L0
- Playing Bach melodies: https://www.youtube.com/watch?v=5AwyOTEtSNE

I am working on a Soundfont for this instrument. I already have a preliminary version (See attached MS Basic - poliphone- Castilian Dulzaina.sf2). I will improve this version with a more professional recording and debugging of the sounds in the coming weeks.

I have also patched a MuseScore 4.4.0 prerelease to include this new instrument (see attached (CastilianDulzainaPatch.diff). The changes to any version (once approved by MuseScore team) should be really easy.

I would very much like to get an answer to some questions and problems I have:

==> First: Volume of the SoundFont. The Dulzaina is an instrument with a very high volume. The recordings I have made also show a high volume in Audacity and in polyphone. I have compared the Oboe and Dulzaina castellana within Polyphone (see CastilianDulzainaVolume.jpg and OboeVolume.jpg) and they seem quite similar (also when played within Polyphone). However there is a big difference when played within MuseScore (see OboeVolume_vs_DulzainaVolume.jpg file). Could anyone please give me some tips about how to address this problem ??

==> Second. As you can see I have chosen the Bank 11 and program 1 for this instrument. I have chosen this Bank because it was free. I would appreciate if someone could give me a better proposal or any information about the rules choosing a bank and program for a new instrument

==> Third. I would also like to know who should I speak to in order to have the authorization to create a pull request and which additional information or documentation is necessary

Thanks in advance