Honestly, you have to treat your grip workouts the same as you treat your gym workouts. Set aside a time that you'll do grip work, decide what you're going to do, and don't let anything distract you.
I've found that the best way to increase strength on grippers is KTA. However, this will make your hands pretty much useless for anything else while you're on the program because you're doing a lot of high-intensity grip work 6 days per week. What I do is a slightly scaled-down version of the program, once or twice per week. A workout may look like this (goal gripper is BeefBuilder Super Master, between CoC #2 and #3):
warmup with a cheap store-bought gripper, a few sets of 10
1 negative with HG300
1 overcrush with CoC #1 or HG200
repeat 5-10 times, depending on how strong I feel, with 1-2 minutes of rest between reps
I may use a choked gripper occasionally instead of a negative. This is where you put a hose clamp around the spring of the gripper, right next to the handles, and tighten until the handles are at a width that you can close them from. Once you're solid at that closing distance, loosen it some, and so on.
An overcrush is when you take a gripper that you can close fairly easily, and close it as hard as you can (kind of like DE work), and hold it closed as hard as you can for 5-10 seconds. It's important to not just hold it closed, but to try to crush the handles together.
I generally do several different grip exercises in a workout. I do bending, block weights, bottoms-up KB work, pinch, etc. I work on supporting grip in the gym with timed BB holds, farmer's walks, and some plate pinching.
You'd really be much better off asking the guys at the GripBoard. It's the grip-world equivalent to having Magnus, Mariusz, Kaz, and Marunde all on the same message board. Richard Sorin himself (the first certified Captain of Crush) posts there, along with Greg Amidon, Dave Morton, Big Steve McGranahan, Clay Edgin, some of the Diesel Crew guys like Jedd and Smitty, etc. They're the friendliest group of guys you'll come across, and always willing to help.