Agreed Gen Nav was a bit of bitch but still whats done is done
Personally I reckon your better off doing some harder ones and some of the easier ones, if u can pick and chose.
Have a look at the subjects some of them go well together........
ie. do AGK at same time as Instruments, and Gen Nav...........................
do Air Law and Ops at the same time.................
PoF and Performance.......................
Flt Plan and Mass & Balance........................
Thats what i can think as all the above subjects cross-over information a fair bit, so by doing them at the same time you cut down a bit on the neccessary work..............................
only a little bit though