To Jothar – I think that I must not have been as clear as I should have been. I am impressed with your research. I recommend that people do research as you did, and not “ploppel” on the Internet regarding serious halocha issues.
(For those who don’t know Yeshivish “to ploppel” is a big insult – it means to talk pompously and irresposibly about serious topics which you know almost nothing about.) Some people discuss major halocha and hashkofa issues on Internet forums as if they were discussing the merits and drawbacks of different brands of chocolate. If I can convice one person that the Intenet is not the place for complex issues for which you need a Rav or Madricha, I will be very happy.
As far as I know you (Jothar) have been “meshamesh talmidei chachamim”. (A partial explanation of “meshamesh talmidei chachomim” is to get first hand experience in practical halocha and its application.) I did not mean to accuse you of anything. I am impressed that you actually researched the topic. Your friend Menachem Melamed.