Hello - I will apologise if this is a repeat of an answer that I gave, or tried to give, yesterday but now I cannot see!
I have completed detailed research into my family tree, taking two lines back to c1600, all my ancestors being Scottish, as I am myself. My sources are all based on the National Records for Scotland (I am professionally versed in rules of evidence, and I fully understand the need for cross-references, etc). My results are currently held in a spreadsheet of my own design and a narrative family history which I have written.
I have also experience in WW1 military records, from a project in an English village.
I would be very happy to help others within a project, especially in areas where I have previous experience.