Generally it tales a bit of concentration to go during the day such as on a long flight and wearing a high SAP disposable. While skiing, the first usage is a bit of some concentration (or rather easing of my mind) but by afternoon I can flow much more freely in my disposable diaper. Waking up in the morning though has differences.
I usually go to the toilet after getting up and then continue to wear my training underwear and plastic underpants while I shave; maybe even put on a robe and go eat breakfast and then change out of them before taking a shower. However, If I first get up and go to shave instead of using the toilet first, I quickly get "on the edge" while standing at the sink. I generally can hold it but with some discomfort.
If I try to let go a bit in protective undergarments while shaving and then try to stop, the slight allowance I try to do turns fully open very quickly (like half a second), much like turning a water valve open too quickly and then trying to get it shut off just as quick but realizing it is taking more time than I thought. A few times the surge is so great I have too much discomfort at stopping it and mentally my mind says I have already lost it and so I should just let it go since I am wearing plastic underpants and it is OK; that is why I am wearing protection. I think this mimics my acceptance when I was 4 - 6 years old and wore training underwear and plastic underpants at night due to occasional bed wetting. Though as a teenager I did not have bedwetting accidents, when I started college I quickly went into full diapers and plastic underpants for my nighttime accidents and large amount I wet. I only have nighttime accidents now several times a year and typically not very heavy.
It is strange though how if I let go a bit while standing in the morning I fully flow a lot so easily and quickly. Even flooding myself I can step into the tub for any leaks that occur due to overwhelming my training underwear and plastic underpants so it is not a big deal but maybe I am conditioning myself over the years and this will occur even easier each morning to wear I will need to hurry to the toilet as soon as I get up?