Great Triceps and Abs workout

Here is a great triceps and ab workout I did yesterday:
Rope pushdown warm up 2 x 15 reps),work sets 3 sets of 67.5 kg/15(F), 72.5 kg/12(F), 82.5 kg/12(BF) then drop set for 72.5 kg/8 reps
Two dumbbell Skull Crushers w/rotation 3 sets of 40 lbs/10, 45 lbs/10, 50 lbs/8(F)
Seated two hand Db overhead extension 3 sets of 90 lbs/12(F), 100 lbs/10(F), 110lbs/10**(BF)
Straight bar cable press downs 3 sets of 82.5 kg/12(F), 92.5 kg/10(F), 100 kg/8(BF) drop set for 72.5 kg/10 more reps
-ABS:

Rope crunches 3 x 18(F), 12(F), 8(BF) drop set for 8-15more reps
V-ups 3 x fail
Weighted decline sit ups 3 x 10(F)s