...hmmm, the thought is more about one action following a precise travel line up and down (with spring assisting that travel line remain true) and the other travel side to side (with the spring assisting in that travel holding that line true) This is the beauty of mode 1 , "the constant true travel held in place by springs'.

the other mode (2) making the same level flight to a turn and back to a level flight would have to mix the travel of one stick doing two things (yes it is done by the majority I know) but I have noticed when I see a turn with bouncing up and down it is more one certain mode than another. (wind aside , Extra 300, Laser200 and so on that are not effected so much by any wind).

I need to repeat here....this is just an open conversation of opinion. Mine means nothing to anyone but me really. this is all fun talk about what thought process is used for the decision of your mode choice.

I can give you a sort of example. Try to duplicate a smooth diagonal line with an Etch A Sketch. yeah it is an apple and this is an orange...but repeating and repetition is difficult.