BrianL, I'm not sure it's possible to figure out what the % of total CNBG are eating, but I've had it take as few as 2 days, and as long as 3 weeks to get the fish accustomed to a new feeder location and throw times. I'll hand feed at those locations until I feel comfortable with a 1 second throw getting completely eatten.
My experience has been that starting with a location that's spawn friendly, has close access to deeper water, and has adequate cover(if needed) to protect the CNBG while they're eating would give you the best chance of feeding as many fish as possible.
July 19th is almost here, so I'll be out checking for new CNBG beds and possible locations for additional high percentage feeder locations. My wife told me I'm wasting my time, because unfortunately she's figured out that more feeders equal more fish food.
