I have a 1973 Sanger bubble deck circle flat with a BBC, 12* casale, and stellings 11-5/8x15 prop. I know that there are a lot of things that will determine the overall setting of the plates like the placement of the motor and vdrive. I was curious if anyone out there had just some starting points. Like where to set the plate as a good ground. 1/4" up 1/4" down or level with the bottom of the hull? Also with the gullwing action on the plates how far do you turn the ears down? 1/4"? Is the gullwing only necessary on circle boat applications or drag applications as well?