FRD and I use pause if I want the game to be slower.
I would suggest to X and other devs that speed be given negative values as well, similar to Supreme Commander where the game can be slowed down and speed up though a mechanic very similar to what is already in AI War. Currently you can speed you AI War game by pressing + and it will say Speed +1, etc, and it would be nice to have the option to have negative values to be able to slow the game down - you know, for those especially critical attacks and such where you want to have a little more control. With this mechanic you might also remove "normal" speed altogether and let players play at whatever speed they like.
Yes, I realize my description is redundant. I stated the same thing twice hoping it would be more clear.
Final question: Does Normal vs F&D have any effect on ships effectiveness? IE, might a certain type of ship be more or less effective based on the game speed?