From what ive heard the obliques are very hard muscles to stimulate growth in. Is this why i can only find a few exercises that target them?
I usually do the slanted sideways situp. I dont know the correct name for it, where you lodge your legs on this little stand and do sideways situps or crunches, sometimes holding weight. And bar twists, though i can do hundreds of these and not feel a burn, i think the only thing im getting from them is diziness.