I read through the first chapter in Claude Gordons Systematic Approach to Practice. In the section on Pedal Tones he explains about low F# and going flat. He then shows a little staff with the notes going below F# WITH FINGERINGS, like 1 for low F, 12 for E, etc. Ok, then near the end he says this: Do Not Deviate from the fingerings I have marked. (I'm assuming these are the 1 low F, 12 low E, etc.). Then this sentence, which seems to contradict the one before it: All the lower octaves use the same fingering: G with 1 and 3, F# with all three.
So which is it when you do pedal tones? Do you stick with his fingerings, 1,12,etc. or do you stick with his fingerings 13 / G, 123 F# and lip things down?