AOT is indeed short for Arse Over Tit – as in he fell off.
Thanks for all the comments chaps much appreciated – I rode a ‘mild’ off road route today and took the Spark over the Bokeh and pleased I did – I’d certainly have gone AOT in places due to the wet slippy conditions. Even in summer though the XC bike would be more comfortable than my gravel bike.
I enjoy riding of all types-ish – road, gravel and XC and have a bike for each that I’m grateful for – I’d never dream of telling what type of bike to ride, I just find it a bit odd when I see some events and people riding bikes they could have chosen better and been more comfortable on.
For me Dirty Reiver, SDW etc would be an XC MTB not a gravel bike but then I’m no expert.
But as I said at the start – ride what you like.