Lane etiquette question

Just wondering, when lane swimming and a faster swimmer can't for some reason go around a slower swimmer (narrow lane, busy lane, slower swimmer is in the middle of the lane, whatever), is it acceptable etiquette for the faster swimmer to pass underneath the slower swimmer? Will that freak out the slower swimmer? Alan The speed difference between two swimmers would have to be huge if an underwater pass is possible. In that case, a surface pass is way easier and faster. Even if the lane is narrow, busy or the slower athlete is plugging the middle, there is always room to squeeze past if you are that much faster. A few friendly words have always eliminated this kind of problem for me "If I need to go past you, I'll tap your foot so you know what side I'm on. Don't stop. It's my job to pass without messing you up."

Just wondering, when lane swimming and a faster swimmer can't for some reason go around a slower swimmer (narrow lane, busy lane, slower swimmer is in the middle of the lane, whatever), is it acceptable etiquette for the faster swimmer to pass underneath the slower swimmer? Will that freak out the slower swimmer? Alan The speed difference between two swimmers would have to be huge if an underwater pass is possible. In that case, a surface pass is way easier and faster. Even if the lane is narrow, busy or the slower athlete is plugging the middle, there is always room to squeeze past if you are that much faster. A few friendly words have always eliminated this kind of problem for me "If I need to go past you, I'll tap your foot so you know what side I'm on. Don't stop. It's my job to pass without messing you up."