Excellent report and best wishes to you and your family.
The sidlaw ridge is one of the finest traverses in Scotland
Had you continued on your bearing past the wild camp spot (camped there may times, definitely something "other" about that place) you would have ended up on Kinpurney Hill outside Newtyle
http://www.walkhighlands.co.uk/angus/kinpurney-hill.shtml which makes a nice addition if you want to extend the walk by a couple of hours.
Regarding Syd Scroggie, it wasn't until he died that I realised he only lived down in Brig'foot a few doors along from my auntie, would have loved to have met him.