Whole wheat pastry flour vs. white whole wheat flour

I found a couple posts about this on the blog Sweet + Natural, she says:

"So what’s the diff? Well, they’re both made from whole wheat – obviously – yay whole grains! Actually, they’re both made from whole white wheat. But WWPF is produced from a “soft” variety whereas WWWF is made from a “hard” variety. And WWPF is milled to a very fine texture while WWWF is more coursely ground. WWPF is also lower in protein and gluten. Add all these things together and you get a flour that’ll give you baked goods more light and tender than regular whole wheat flour, or even WWWF, ever could.

I tend to turn to WWPF for delicate treats – like cakes – and WWWF for things that can handle a heartier texture – like muffins or quick breads. But sometimes I just go with whatever I’m feeling. Like I’m kind of liking WWPF better right now. Shhh…don’t tell WWWF. When substituting it for white, all-purpose flour in recipes, I replace it cup for cup."

Read more:
http://sweetandnatural.wordpress.com/2008/11/08/white-whole-wheat-flour/
http://sweetandnatural.wordpress.com/2009/01/07/whole-wheat-pastry-flour/