Most of them dry overnight. I once did a shoe that was wet even the next afternoon - luckily she did not try to wear them that day. Since then I am more careful and only piss them before the weekend (usually on Friday evenings)
Oh yes, that's they way I like it! I love ballerinas and I love to piss and cum in them. Great job! After hours in the office are the best hours I've done a lot of co-workers and client's shoes like that