Hoooly crap you made hard mode hard
I didn't even think it was possible to beat it at first. I had a good 4 or 5 completely failed attempts at first.
amidst a game of frantic offensive/defensive clicking, I managed to take out the evil blue menace. If you're wondering whether you should make it harder, I would say you've gone far enough, at this point. Really quite a challenge now, enjoying it
As a side note, however, I depending mostly on rapid right-left alternating clicking to send units, since there was no good way to send ships fast enough using the current controls. I noticed you have changed both left and middle click to sending only half the ships at once. I know I kind of said I liked the left click to send half the units, but it doesn't work so well if you deselect every time you do it. The only way I could select fast enough was to abuse select-all rapidly. I would say either switch left click back, or stop deselecting after the click.
Also, have you actually beat the current hard mode? Curious.