I ride a heavily cambered, very stiff, very directional board, and I still run a symmetrical setup (-12/+12 or so)... But look at some pros and some of them are all forward angles, some run mild duck, some symmetrical, etc.
Point of my story is you've got to find what works for you, and angle is just part of the equation. Best advice when setting up ANYTHING (boards, bindings, cars, etc.) is to change on variable at a time. In this case that's the board. Leave everything else equal and get used to that board for a couple days. After that fiddle if you want, but ONE THING AT A TIME!
I don't think you need to go back to bunny hills to ride a cambered deck. Go on runs you're used to but take it easy for a few runs to get the feel. I honestly don't think camber is nearly as scary as some people make it out to be!