There are other things that you may have learned to do by rote which do not make sense right now. Some schools insist that the pre-landing checks include a "gear down" check, even in aircraft that have fixed gear. It's nonsense right now, but may save your life (or at least prevent an expensive repair) eventually, some day, in a situation where your mental capacity just fell that tiny bit short.
Indeed my thoughts exactly BP.
I'd just like to know more about the actual testing done on that particular engine to determine when and when it won't suffer carb icing. I know because of the location of the venturi the O-320 doesn't suffer like some Continentals do at 'normal' UK temps/dew points but surely at some temperatures (for example when one might think it is too cold for icing) this may actually make carb icing more likely.....just when you aren't expecting it.
What would be nice is an engine specific version of the CAA AIC on the issue.