shipping of each unique item separately?
i have shipping setup on a quantity basis. 
0-100 = X
100-200 = Y
201-300 = Z
i need to figure out how i can setup shipping so that each UNIQUE item is calculated to ship individually. 
Meaning if i have ...100 of itemA and 200 of itemB
i want the shipping to be X+Y (total to ship 100 + total to ship 200)
NOT Z (total to ship 300)
how can i do this?
I have shipping based on QUANTITY, ZONE(based on state), and TYPE (ground, express)
here is the code from 1 shipping definition. 
//eCart Rule
function WAEC_pcccart_Ship1_1_150()  {
  $totalShipping = 0;
  if (true && (($this->TotalColumn("Quantity") > 10) && ($this->TotalColumn("Quantity") < 150) && ((isset($_SESSION['ship_stg'])?$_SESSION['ship_stg']:"") == "1") && ((isset($_SESSION['ship_method'])?$_SESSION['ship_method']:"") == "1"))) {
    $totalShipping += 10;//Result
  }
  return WA_eCart_FormatNumber($totalShipping, $this->ForceDecimalsC, $this->DecimalPlacesC);
}
//eCart Rule
THANKS for any help
Sam


