many people start out younger BPs on a 5 day schedule and switch to a 7 day schedule as they grow a bit bigger.
I've heard that most people stop the 5 day schedule around 500 grams. I'm assuming you don't have a scale, but my female bp is 24 inches, hatched in august 08, and weighed in at 350 grams last week, just so you get a size comparison.
Also, you can go ahead and offer food during shed, plenty of people on this site will tell you that there is no reason not to offer food during shed.