So as of now, I have a large crack in the...
So as of now, I have a large crack in the nose of my 07/08 Burton Twin and I have always wanted a rocker board since they came out, i weigh 180 I'm 5'10 and boot size of 11.5. would this be a good board for me?
Totally. You could ride anywhere in the 152-156 range depending on your park/riding preferences. I've also heard good things about the Burton Joystick and the Capita horrorscope which are both reverse camber. I reverse camber (I've found) is amazingly fun in the park and in pow, but still great just cruising groomers. I'd recommend the 154 or 156 though just cause you've got bigger feet. On both you'll get some overhang. You'll probably be fine, but for reference I have the same size feet and generally go for a waist width no narrower than 252mm. Good luck.
Justin speaks the truth. The youngblood will be perfect for you. Great board.