Originally Posted by
cny-bikeman
........Pure, unadulterated falsehood, promulgated most likely by some young snobbish neophytes who don't want to bother with figuring out a problem other than deciding it's because a part is "old-fashioned."
+1
The pressure drop I mentioned was on new wheels that used Presta.
My previous wheels were equipped with Schraeder and had a slower pressure loss, but with slightly larger tires. (more air "available" to leak)
It's my feeling you get more "seepage loss" by using undersize tubes than anything else.