KG - thanks for the info but

"Secure � For an open top holster, be it IWB or OWB try this test. Put your gun & holster on. Now do a forward roll on the ground, then a backward role; your pistol shouldn�t have moved�yet when you reach for it, it slips out with a deliberate motion. That�s the standard I apply."

Holy crap! I am not sure I can even DO a forward and backward roll!