I have made a lot of baits with bills, different sizes and angles and have yet to come up with any consistent pattern. I have two baits similar in size with the same angle and one dives deeper than the other. I did learn that size doesn’t dictate depth, angle is more important. Size can cause greater turbulence. This bait below look odd because the the large lip, but you can barley turn the handle and it starts moving side to side.