This one is good though because if you miss the tip you just get the previous week's tip. Last year I didn't tip for about 7 rounds and I shot up the ladder!!
Anyone still wanting to sign up has until the bounce for Round 2. If you're not signed up in time to tip Round 1 (or you are signed up, but forget to tip) then you'll get an automatic tip, which for round 1 is a draw.