no definately not a flat trajectory..well not at 40 metres anyway. rather a medium arc. i shoot instinctively..i made a promise to learn this a few years ago..no sights, no weights, no marks..just simply looking at the target the whole time and i let my body do the rest. howver still in the learning phase so my accuracy is at 50 percent. wind shears, forest overhang etc manage to stuff me up at times. steadiness of bow arm..clean release..so many factors. but on the instinctive side of things..if all the other factors were a big fat zero then my bow arm seems to know what my eyes want.