Very thought provoking. However, it has been known for razers to raz even quicker during the colder months to keep warm and also so that you can get back inside sooner. Example: Ladybower Dambuster.
On another note, from mine, Woodleys and Mr Walsh's exiperneces, it can be concluded that the raz is not a popular concept down under.
Mr. Walsh has never been able to handle a Raz ;)