I have never seen the occupation make any difference to the quote. I can never make up my mind what my occupation is as it could be one of:
  • Managing director
  • Company director
  • Computer programmer
  • IT professional
  • Computer consultant
  • Software engineer

etc...

I have just been to the Tesco's web site and it makes no difference what occupation I pick from their list (i.e. not just sticking to anything from the list above) the quote is always the same, £655.
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Remind me to change my signature to something more interesting someday