Bread-Bakers v106.n035.1

I've been working with sourdoughs for awhile now, but there is a 
question that I have been unable to find the answer to.  When using a 
sourdough starter, should it be fed immediately before using?  Or 
should I feed it a few hours before and then use it in my 
dough?  Before baking with my starter, I make sure to wake it up (I 
usually store it in the refrigerator) three days before, feeding it 
three times a day until the baking day.

Thank you?