4 Sets
12 light reps with 3 second slow count descend each rep
10 heavier reps with 3 second slow count descend each rep
10 reps with 3 second slow count descend each rep
8 heavy reps with 3 second slow count descend each rep

Note: Start out light to get a feeling of this grip style. Increase weight each set to a heavish set of 8 if possible . Rest 90 seconds between sets.