I guess I'll have to try the Zero approach one day & try to judge if there is any difference.

Trouble is the few performances I have done have involved hanging around (usually nervously) for a bit backstage or at the bar waiting for my slot. This almost inevtiably leads to me succombing to temptation!

Sessions & rehearsals are different though - the optimum pint level is usually exceed fairly early on in proceedings!

PS I didn't use to be GuestIanN but somehow I can't seem to log on!