"re thread closing: the discussion's been quite civil really."
Well mostly, perhaps.
"I am just so grateful that..."
That sounds like a good place to finish.
I don't often close threads, but this has developed - like some previous helmet ones did - to a point where two 'sides' emerge and useful/enlightening discussion gets overwhelmed by a degree of unCCElike rancour.
That may sound like a new rule ' CCE should remain friendly - and bland'', but once things get like tennis (but without much actual point scoring) it becomes time to put the roof on - and turn the lights off.
Looks like another day for lots of sun cream, water and exploring Edinburgh and the surrounding area.