The EG itself releases at the same rate as other engine gears (other than Turbo Left) as far as I know, and I don't think there are any other major differences.
Honestly, I think the "Steady" thing refers to the fact the clutch is released/engine is active through the entire battle, not just at High enough RPMs/After being hit or whatever it is that activates final clutch bases (I never actually looked into whether it's hits or decreasing rpm that activates them, will try to do so today).
The official name of the base seems to just be "Normal Base", the steady release thing may also just be from it being active throughout the battle, when charged, or that being less concentrated mass, the CEW is affected by friction with the ground more, slowing the release...
Honestly, the names and descriptions they gave things weren't too great.
Honestly, I think the "Steady" thing refers to the fact the clutch is released/engine is active through the entire battle, not just at High enough RPMs/After being hit or whatever it is that activates final clutch bases (I never actually looked into whether it's hits or decreasing rpm that activates them, will try to do so today).
The official name of the base seems to just be "Normal Base", the steady release thing may also just be from it being active throughout the battle, when charged, or that being less concentrated mass, the CEW is affected by friction with the ground more, slowing the release...
Honestly, the names and descriptions they gave things weren't too great.