Wow - soon it is time
154 Hz at the lowest, thats neat. You can still do some voices then but are not stuck at that anymore that sounds great. I guess that 154 was your F0 when you did a "male voice" e.g. totally not doing the regular thing to raise pitch?
I am feeling a bit weird because my present voice that I can hardly slip out of is about 150 Hz too, but I still can to the lower register if I really try to and that is at 100 Hz (averaged in praat). Which frequency would be choosen as a base? If it is the 100 Hz, I guess i would have to go 1/2 as well, which I guess translates to a bigger loss in pitch range and volume?
The thing about increasing volumen because using less force makes sense. I will ask about that in the voice clinic in 3 weeks at the checkup. I guess that training may be able to correct this as well to some degree. Gawd this is going to be weird, I am sure they will make me talk in my old voice again... :\
When will you be able to see Seoul? - You probably will have a day rest or so after the surgery and then you can be up again?