Hawaii is great. I was just there the week before christmas. That is great that you guys hunt over there too. How does goat taste like? Ever since I have been watching "No Reservation" with Anthony Bourdain on the Travel Channel, I feel like traveling the world and eating everything, like he does.
About the WWB, that is good ammo, better and hotter than American Eagle. Actually any 55gr or 62 gr ammo, except Wolf, should be sufficient enough to break in the rifle. My XCR is broken in, and still has problems with Wolf sometimes.