Feeding question.

My ball python hatched late June 2012, and the breeder had been feeding him every 10 days. Should I stay on that feeding schedule, or switch to every 7 days?

I feed every 5-7 day for younger/smaller BPs but 10 days isn't detrimental so it's up to your preference.

I feed every seven but agree with Daybreaker about ten.

Mine was hatched 7/27/2012 and I have him eating every 7 days.

I think he's got a taste for rat, I gave him his first one today and he gobbled it down faster than I've seen so far!
Afterwards he looked like he was looking for more hehe. I could probably feed him every 5 from how he's acting, but no need to push it...

I'd switch to 7 days, 10 seems a little long. How much does he weigh now?

10 days seems a little long I would switch him over to every 5 days until he reaches the 500 gram mark then switch back to every 7 days also make sure you're feeding him about 10-15% his body weight ex: if your ball ways 100 grams feed him a 15 gram mouse/rat. Or you could feed him a mouse/rat the same size of the fattest part of his body. Hope I helped :)