“As for havdalah, even the litvish are more lenient – beer is perfectly acceptable for that (though again, I have never seen anyone make havdalah on any amount of whiskey).”
Interesting! Shabbos morning kiddush is derabbonon and therefore would be easier to be meikel. Havdalla is d’oraissa and one should be more machmir.
Boy i know I’m gonna get it for this but..methinks klal Yisroel has bigger problems than those that follow the Taz and make Shabbos morning kiddush on whiskey. Whether chasid or litvak.