ORIGINAL: PAstew
At 45#'s the heritage 150's at 28" bop will be way over spined. You'll need to put a lot of weight up front for them to fly well. I would suggest 1916's at 28" bop with 150 up front.
I should have been more specific sorry. I'm shooting the 250's (which is where I got the 11gr. per inch from in my second post). Does that sound like a better choice in regards to proper spine?