my dealer told me it is not as needed as before, but i took it easy anyways. i also kept it at different rpm and speed as much as i can. i did took a northern ca trip to get the break-in period over with.
interestingly, there is a site (i forgot the address) explaining the exact opposite. in short, driving it hard to get things to set in. i know of a few that drove their cars hard since the day they bought it.
fxt, your break-in period must suck knowing you have power you cant use yet.