It is possible to switch between a Soul on the go as long as 0 points have been invested into it and maintain the buffs obtained after swapping Souls, while gaining a new set of 0 point skills.
Example: Watch my buffs as I swap from Archon to Dominator to CC a mob, and then back to Archon with the mob remaining in a CC'd state.
_________________ I DO NOT TAKE CREDIT FOR MY INFO.
I am a member of a exploit guild and post it here because i like this site and want to help it.