What skill conversion strategies can warship girl R double skills convert?

In the new version of the battleship girl R game, the dual-skill gameplay is added, mainly to make some modified ships change their skills to fight. Let's see what second skills the battleship girl R has worth transforming.

The second skill that can be converted at present:

Saratoga Reform: Every aircraft carrier outside Saratoga in the team will increase Saratoga's aircraft carrier strength by 7%.

Prince of Wales changed: when shelling, the basic attack power increased by 4%, and the target decreased by 10 to avoid and defend.

Bismarck change: When the current endurance is above 50%, all the damage suffered will be reduced by 8 points.

Hu: When Hood becomes the flagship, the speed of the whole team will increase by 4 points.

Rodney change: when attacking, the basic attack power is increased by 7%, while the firepower of the target is reduced by 15%.

Quincy change: 30% probability to launch, attack the flagship of the other fleet, increase 15 fixed damage and will definitely hit.

Helena change: 25% probability of starting at night, causing 50% damage to 3 targets.

At present, Hu's second skill should be the most widely used. After the conversion, the speed of the whole team will be increased by 4 points as the flagship, and the boat can be fished in the 2-5 middle road, improving the success rate of 7- 1 detour, but it is still necessary to switch back when pushing the map. Another thing to consider is Saratoga. After all, six aircraft carriers are rarely used to push the map. It is enough to have a wife buff, but it is not necessary.

Bismarck's words, 4-3 changed two skills and then stole aluminum. Other transformations are rare. If you think the name buff Metaphysics of the Prince of Wales is useless, you can change it, and the other two skills of the ship's mother will not be considered for the time being.