I think you could do fine with a 1/2oz most places, but like Mark basically said, you couldn't go wrong packing a 1oz around, a 2+oz is for eggs imo.
I have a little trick I could show you sometime, I use it for Salmon though, you know those chunks of lead with the rubber insert? I like to set a small one about 8-10 inches off my eggs to get them down into the strike zone right away.