Version numero 2:

1/2 oz Southern Comfort
1/2 oz Amaretto
1/2 oz Rum
1/2 oz OJ
Splash of Grenadine
Shake and Strain into a Shooter glass.

This is my preferred recipe. A little more common in the South. The OJ and Grenadine bring a little more sweet, fruitier taste, which complements the SoCo very nicely.