Certainly nothing unusual about those sort of winds in Scotland and Dave would have done a great deal of his 800hrs+ flying in those sort of conditions.
Peters point was to state that the winds were forecast and, easily predicted. The rest of the flying group knew this, and planned to transit well clear of this particular route.
That is why it is all the more baffling as to why Dave, with his experience, and with the Met facilities available at Perth, decided to do what he did.