If a burglar or home invader is trying to get into our house my plan is to arm myself, tell my wife to grab her gun and her phone and go in the bathroom and then hunker down and wait for the Calvary to arrive. I'm not going to be clearing my house. If someone is trying to get into our house they'll have their work cut out for them with those two doors or those windows, we've hardened both. I'd rather just keep them out til the cops get there than shoot them. The perfect vantage point to observe the two doors into our house and the front and rear windows is right by the door to our bedroom. Except for the kitchen I can see the whole first floor. I have my body armor by our bed and my wife's set is in the bathroom closet. My side zip work boots are also right by our bed so I have something to stuff my feet into. If I go through 28 rds I have 4 other mags and a Glock and 4 pistol mags in my bedside drawer to work my way through. There's almost no situation on earth that's going to require that many shots, but I'm betting that Vic Stacey or Stephen Willeford didn't think that they'd be dealing with the crazy situations that they had to deal with when they woke up that morning either. Not much need for a sling.