After the imperial reform "Revoke the Privilegia", (it is practical that the emperor can make all members approve),all memebers in HRE become vassals of the emperor. And then player emperor will release as much as possible vassals in HRE. In this way, HRE become so horrible, the emperor can start a war freewheelingly and wait for victory.
The Liberty Desire is so low that no one in HRE want to be free. It's not logical that a spilt HRE is far stronger than an integrated HRE. In my opinion, the Imperial Reform "Revoke The Privilegia" should be weaken. Maybe there is a solution like this: after the reform, all members in HRE become Tributary of the emperor, that they have only economic obligation and no military obligation.
The Liberty Desire is so low that no one in HRE want to be free. It's not logical that a spilt HRE is far stronger than an integrated HRE. In my opinion, the Imperial Reform "Revoke The Privilegia" should be weaken. Maybe there is a solution like this: after the reform, all members in HRE become Tributary of the emperor, that they have only economic obligation and no military obligation.