I shall reply as someone with more "Scottish" ancentry than most. You are not wrong, in some ways, but relating Scots with Neolithic culture and Picts is a bit out of order. People - time - place. The Picts and Scots were not the same culture or the same background. The Scots only became inherited the Orkneys c13/14. Forget DNA,which shows modern migration. DNA evidence show Norse occupation. Where have you evidence of the Scots being involved?

David

"When you do not know where you are going, any road will take you there".