Tbh pulling with overpower is infinitely better than pulling with tomahawk. It generates more threat and you are not facepulling if done correctly. It makes it easier to put up storms eye before you even use a butchers block combo which is a big dps increase for your opener. The only time using tomahawk is better is when postioning the boss oddly lIke in t10 and also a3s. Also overpower is better to pick up a single add in a fight than tomahawk or uncomboed butchers block.