Here's a tip for hitting the CV that I've been using with success for years.
1. Make sure that you're calibrated at stable speed and 0 on the climb rate in the E6B.
2. Make course corrections in the bombsight once calibrated to minimize error.
3. When dropping, lead the CV 1 ship's length for every 10,000 ft of altitude. So if you're at 7500 ft, only lead 3/4 of a ship's length. For 5000 ft, only lead 1/2 a ship's length. Conversely, if you're at 15,000 ft, lead the CV 1.5 ship's lengths.
If you're calibrated correctly, this'll hit every time. For a CV that's turning, use the same numbers, just anticipate the path of the turning ship.
To watch your bombs hit, all you have to do is stay in the bombsight, and go back into calibration mode. This will point your bombsight view straight down, allowing you to see the hits.
Happy sinking.