Easiest way to not have to worry about engine outs is to not start with one in the first place :D
Also best glide varies with gross weight. Best glide at full weight will be at a higher airspeed than when light.
Just to throw fuel on the fire, we had an elt go off at 6Y9 overnight, and no one noticed or called anyone at the field. So much for people monitoring 121.5 in the ass end of nowhere...