General library question

[eluser]xadio[/eluser]
@tomcode: Yea no significant speed decreases, but I haven't run a full test. Thanks for all your help tomcode!

@Zacharias: I have decided not submit my project yet because it is still in design and I will get flamed when people know what it is. The pieces that I am working on have to deal with (GoF) (Abstract) Factory and (GoF) Singleton Design Patterns.

Code:

(abstract) class Factory {
  public $validate;
  private function __construct() {} //do some validation
  private function inventoryProducts() {} //do some inventory and cache products
}

class SomeFactory extends Factory {
  public $product;
  public function __contruct($someProduct) {} //return the appropriate product
  //...
}

abstract class SomeProducts {
//...
}

class SomeProductA {
//...
}

class SomeProductB {
//...
}

So as you can see Factory is essentially a Singleton or abstract, and probably will never need to be called. However, I need to require this because load->library will initialize the instance. SomeFactory is a (concrete) factory producing some concrete products depending on how it is initialized.

So CI works well, but it puts a damper on some of what I want/need.