run-on with MSD 6AL

Anyone run into engine run-on with MSD digital 6AL? The fix in the instructions say to wire in a duel ballest resistor (see link, page 8). Just did this on my set up and right now its workin.
408, Mallory Unilite, MSD digital 6AL, MSD coil.
**Different car than the one I was asking help with yester day**
6425.pdf (holley.com)