It would be great if ship moves were handled slightly differently when it comes to fleets.
Currently, when ships are in a fleet, the moves remaining for each individual ship is set to the smallest value in the fleet. This is a straightforward way of getting the desired behavior where a fleet moves only as fast as its slowest ship; however, it doesn't work too well when ships are ungrouped.
For example, consider I start a turn with two ships, with moves 6 and 9, grouped into a fleet. I notice that one of my opponents moved an undefended troop transport 8 moves away from the fleet. What I would love to be able to do is ungroup the fleet and send the 9 move ship to intercept the troop transport; unfortunately, the 9 move ship has only 6/9 moves remaining because it started the turn in a fleet with a slower ship.
Or consider a situation where I have two fleets converging to attack an enemy planet. One fleet is closer, and gets to the planet with 8/11 moves remaining. The other fleet arrives with 1/11 moves remaining. There is a second target 5 moves away from the enemy planet that is the primary target; what I would love to do is group my two fleets to attack the planet, then ungroup them to send the ships with moves remaining to attack the secondary target. But I can't do this, because as soon as a ship with 8 moves remaining joins a fleet with the ships with 1 move remaining, they're knocked down to 1 move remaining as well.
As far as fixes go, it seems to me that this one promises some pretty good bang for the buck. I've been wrong before, but it appears easy to do, sensible, and uncontroversial.
Please consider this alteration to how individual ship moves are tracked within fleets for an upcoming patch.
Also, on a somewhat related note, it would also be nice if ending the turn for a ship didn't set its moves remaining to zero, but instead just changed some internal flag so that the ship was no longer in the "yet to be moved" queue. That is, when I hit spacebar to pass the turn for a ship, then it would not come up when I tabbed through the queue, but it would still have moves remaining if I decided I wanted to move it later.