I started cutting flat top and domed, flat top more on Bola cabs. My feeling is simple it seems now you cut to make the most of the stone. If that is a high dome or a flat top. If you are only cutting by someone's rules and not to make the best stone you are in the wrong hobby. Remember when we first started cutting and if you didn't cut a std shape like a 30 x 40 they almost didn't want to call it a cab. In Competition you had to bend to those rules or you were relegated to the oddities and HEAVEN forbid if you included a druzy pocket in the cab. I was down graded in competition with them calling the druzy pockets "pits in the cab". Back then my wife said I should make an entire display of them and label it "This case is the pits" I do negative shapes, flats, a dome on one half of the top and a flat on the other if that is what the stone calls for. Cabbing is an art, there are no rules.