After a bit of searching I foundthe document source you quoted above: A.P 2095, PILOT'S NOTES GENERAL, PROMULGATED BY ORDER OF THE AIR COUNCIL , 2ND Edition , April 1943. FOR OFFICIAL USE ONLY.
A.P. 2095 is not type-specific. It is about explaining the different operating requirements of a wide variaty of operational aircraft at the time - and over time - like engine management or handling props.
So where does it mention the Spitfire 1? As you said they are GENERIC notes that might not specifically relate to the model.
Spitfire fans clutching at straws again?
(JOKE)