I don't use custom sights any more but, if I did, there would be one custom for divebombing where I duplicate the angle, speed and release altitude every time and use it with maximum head position up.
I might make one that works with maximum head up position to make deflection shooting easier but I usually rely on the tracers.
This brings me to a question.......can one make a custom tracer color like I used to do in warbirds?