Originally Posted by unionrdr
I was thinking that 4-6 cups of water might not have been enough volume for 3oz of hops.?...since 1oz seemed to have worked better.
+1. Thats *A LOT* of hops in 4-6 cups.
According to Designing Great Beers by Gordon Strong ( page 78 bottom left column - page 78 top right column) the water can become saturated and additional alpha-acids wont be absorbed, so that additional hops will have minimal impact.
Perhaps a better test is to make 3 batches of hop tea, and add them in, but that's a lot of extra water, so you will need to have less in your initial fermentor.