Advanced plank challenge

Hi
For those of you who have finished the plank challenge I set: 30 days to a 5 min plank I've now done an advanced challenge.  Err it is so far just one person and I should finish my final 5 mins in a couple of days!

https://docs.google.com/spreadsheet/ccc?key=0Alk8O_1IBwswdEFJb00zNjdUZGtZVmtLUkpLQ2dKZ0E&usp=sharing

Just see the "advanced" tab on the spreadsheet and keep updating it.

Spread the word and lets see if we can get more than 2-3 people on the challenge this time.  Although anyone can start the 5 min challenge at any time as I've left that on there too.

Thanks

Daniel.