Currently, my routine is as follows:

-Speed Bench
-Military BB Press

-Heavy Squats
-Speed Deadlifts

-Heavy Bench
-DB Flies

-Heavy Deadlifts
-Speed Squats
-Yates Rows

Today I was doing SLDLs @ 200 lbs. with a mixed grip. I did my first set of 8 reps, then on my second set, I was pulling rep #8 but my grip failed before I locked out, so I definitely know that I need to start training my grip somehow. I am planning to get Captains of Crush grippers but I doubt that is enough. What should I add to my routine for grip strength?