Experience has nothing to do with who gets an ITA or who doesn't.
If the minimum score for the draw is under 427, you are guaranteed an invitation.
If the minimum score is exactly 427, it will go based on the time you entered the pool.
Example) CIC decides to issue 4000 invitations w/ a minimum score of 427. There are 3500 profiles with scores > 427 who will get an ITA, and 550 with the score of 427. The first 500 people who entered the pool with the score of 427 will receive an ITA.