Oblique leg raise (side raises) on ab stand ("roman chair") - 12 each way x 4

(Giant Set)
Crunches on elevated back extension stan - body weight x 12 (4 sets)
LF oblique crunches - 20 x 20, 30 x 20, 40 x 20, 40 x 20
Cable ab twist - 30 x 15, 37.5 x 15, 37.5 x 15, 37.5 x 15

LF ab machine - 10 x 30, 10 x 30, 10 x 30, 10 x 15 (21 style)

Followed by 15 min. HIIT