N.Dave , I Knew how you feel for all the FI course , up 'til the last 2 hrs ! The ''Give'' and ''Give back'' , took all of that time to understand . Now 5 yrs later it seems to flow , but 1st 100 hrs in 2 months went like a blur .
Lots of armchair flying and small postcards with bullet points of each lesson....still take them up now [ old age ] .
Good luck and most of all enjoy .
rgds condor .