just because SS ang first move means bot nana. naay mga formula for each bot and naay universal formula for certain angles assuming there is 1 or 0 wind. there is even a formula with winds included per kuti na kaayu. mahutdan ka time ug calculate nga mas maayu pa ug mas malingaw pa ka mag guesstimate.. usually mas maka igo ko or at least duol sa target. There was a time na I most usually always start with SS or Double kung ang wind 0 or 1 and 90% of the time it hits. but that was long ago.. dugay napud ko wala ka dula GB.