Thats what you get for expecting GC or SA to actually stock anything you would really want to purchase.HERE'S A FUNNY FOR YOU. Went into GC Scottsdale and one guy in the drum dept. Of course as a courtesy he asked if he could help me find something. I said "Yeah. I need a new throw off for my snare and wondering if you have the DW mag in stock." He thought a minute and asked me "What does it do?"
You can go to the GC website (google search the local SA store) and sort out what the store carries before setting foot.