To all posters criticizing Rabbi Lipman:see Patur aval ossur’s “mekoros”. Hence, your harsh words are very misplaced.
To those who question relying on “kulos”:again, see same “mekoros”.All of the poskim mentioned paskened as they understood and we can -if needed, rely on the”mekilim”. I totally reject Sam2 and DaasYochid opinions that you cannot relyupon the “meikilim”
Gut shabos