Hi Zackoz-
Start with the first 3 exercises I mentioned for 2 sets each (6 sets total) to get started. Try for 10-15 reps (explode up/hold TIGHT 2 seconds/down very slowly) on each exercise with bodyweight only. Once you can get the targeted # of reps easily with bodyweight, clutch a small weight plate to your chest and do the exercises.
Crunch tip- do these with your feet firmly planted ON A WALL with your
knees bent to 90 degrees. Wicked once you start adding weight! (called the "Janda Crunch")
Twisting crunches- Use the same "on the wall" position as with crunches. What you want to do is crunch up and twist simultaneously, but (mentally) pulling your shoulder (not your elbow) to your opposite knee. This will make it a little more difficult.
Rev. Crunches- Lie on your back, arms over your head or at your sides (but on the floor). Knees are LOCKED at 90 degrees. Hips are also LOCKED at 90 degrees. Roll your pelvis up toward your chest keeping knees and hips locked (eliminates
hip flexor recruitment). Hold, release, etc.
Good Luck!
Tuna