Generally with rebed, you can get past its forced values by changing it to the value you want on whatever object you want, not clicking on any other box in that page, then switching to another object or window and never going back to that page. I've used it on weapon and tractor beam ranges for ships (thats when I discovered what happens when a tractored ship tries to hyper!), jedi levels on characters, and the number of starting mines for Coruscant or the Rebel base. You can only change one value per object this way, and if you look at its stats again you have to change it again, but it works! I had wondered about that 1 hyperspace speed... didn't even think that it was because I made the mistake of looking at it.