I'm talking southern biscuits, KFC biscuits...
Sounds like they are being overworked.
I used to work for KFC back in the day (teenage day that is) and I was known as the best biscuit maker. My trick was making sure that the cold ingredients were ice cold, and I didn't work the dough too much.
Also try using pastry flour instead of all-purpose.
I don't have a recipe myself, but I do like these two cooking websites. Here's what I came up with doing a search 'southern biscuits'. I like that people can rate adn comment of the recipes after trying them.
http://www.recipezaar.com/recipes.php?q[]=southern+biscuits&ls=h
http://allrecipes.com/Search/Recipes...ion=Descending