Lower Abs Trifecta

I know I have posted this before (check it out here), but I did this routine this morning and holy toledo my abs were BURNING! Here it is again, because it's THAT good!
The Lower Abs Trifecta: (That's a link to the site I found it on, but here's the breakdown)

Abs Pulse Ups:

Lie flat on your back, on top of a flat bench or on the floor, hands under the behind.

Focus–tighten your core. Brace your abs. Do a leg lift until you legs are 100% vertical. Your body should form a 90 degree angle. That’s your starting position.  SQUEEZE your butt & lower abs and use your hips to push your legs directly upwards. Hold at the top for 1 second, slowly lower and allow your butt to touch the bench, and then immediately pulse back up for the next rep.

Repeat for a set of 15.

Reverse Crunch:

Lie flat on your back, feet at tabletop, arms out to the sids. Bring the knees toward your chest, lifting with the lower abs. Return to start.

(I also add the upper body to this after the first rep where you bring your elbows to your knees! Say "burn baby, burn!")

V-Hold:

Keep your back straight, abs engaged. If you need to simplify the move, bend your legs, or hold the sides of the knees for support. Hold for 30 sec.