J.L.Seagull;
No criticism taken. Dagnabit, it's been too long now - I knew I should have looked them all up instead of going by memory! Thank you for your corrections.
More important though, you not only know your stuff but your post reinforced all this for WST, the original poster, so well done on both counts.
I'm glad you like the advice - I know it works and it keeps one alive.
BTW, what you're now calling the 'yo-yo' we called the 'donut', but that term also refers to the TLA Angle indication on the N1 or EPR displays on the ECAM E/WD..., so I dunno what to call it. ;-)
best,
PJ2