Keep up the good work, andsuchisdeath. Looks like you've kept yourself interested for a couple of years.
+Be consistent
+Sleep well
"If I were a different guy" I'd answer
hollow body and its inverse, the
arch as to what the best exercise is.
They have several
progressions to and from those positions, but if you think of them as keyframes in an animation, you'll find them in planks, pushups, handstands, roundoffs, uneven bar swings, etc - the same position in the full gamut of static and dynamic exercises. Given the location of those muscles (splitting the body in half), you'll be able to recruit them in all sorts of other exercises, too, for stability, assistance, or impact absorption.