RVDT: you don't really know who you believe do you? You've stuck with your preferred theory for some time and refuse to budge when the truth comes along
"KISS": stick to cambridge and you won't ever get disproven.
What is a travesty is that for so long, so many mil pilots were taught bo**ocks and went along with it. Shame on you all.
How many others believe the low pressure upper surface definition?