If anyone is interested I have just started sleeping biphasically, I have decided to keep a record of my progress in the form of a blog. Here.
It's not a fancy blog like Steves
I just made it in a couple of minutes in order to record my results. I will be updating it after each sleep.
As explained in the blog I am attempting to adjust to 6 hours sleep at night and a 1.5 hour sleep during the day before then attempting to reduce the core sleep to 4.5 hours. Hopefully I will be able to make this adjustment fairly soon as the very early stages have gone well.