My idea is simple, enable to change fleet speed during flight... But, because this game is so balanced, I will add this, if U want to speed up your fleet, U must left some ships... Example: U send on "saven" 400 guardians, you want to change speed from 40% to 30%, you must left 20 of them or, you want to speed up, and U can choose 50% of fleet you want to speed up, and other 50% will slow down (not enough gas)...
(or something similar, this idea is still fresh )... I don't want to change balance, and I think that this will add new tactic detail, there is a lot of players that have more experience than me, so give suggestion on that.... Imagine, you have seen that fleet attack you, and you want to surprise them, you have bigger fleet, and when you change speed you lose some ships (or slow down the part of them), can U surprise him then... 
Welcome to the band ...
