Flatout...
I love to call the flats "flatouts" because that's what I love to do on them...ride flat out as fast as I can!
I haven't been riding long, but with all sports I've learned I'm also an endurance kind of person; my first couple of rides were 30 and 40 miles and I'm up to just shy of 60 miles now. I'm sure I'll be hitting 70 very soon. Hills hate me (otherwise they'd be kinder to me, right?), but I do also love to go fast. I can maintain about 18mph average on a flat which isn't very fast, but I'm pretty sure I'll be getting faster with time. I don't even have the blood vessel network built up yet!
I get to have pizza after this, right? No...wait...cheesecake....