Just changed to new Tena Flex Medium in highway restaurant and motel toilet. Previous one get "used" during complete standstill on highway ( road works and traffic accident combination ( 2,5 hours in moving car + 1.5 hours in traffic jam). My wife barely managed to "survive" without diapers to go to toilet without accident. She just took one Tena Flex from backpack and went back to toilet to put one on with words: "You were right about this for highway trips.
She will usually use them for during skiing, winter hiking,during illnes but never for car travel. I think that she slowly starts to understands me why I am also using them during car travel on highways, crowded places like festivals, long bus travel or after hard and stressfull days at work or nights after long travel.