25:1 = idle
10:1 = power generation
1:1 = high warp (above warp 8)
HOW CAN THIS BE!?!!? M/AR MUST BE 1:1!!!!
Remember, the ship transfers bulk power via PLASMA.
Plasma isn't photons, plasma is MATTER.
At high warp, the return plasma is hot enough to simply be reenergized, and you want to save as much energy as possible.
At idle, your return plasma might even be a hot gas, in which case you'd need to recondense it and reinject it into the reaction under more controlled circumstances.