If i decide to epic reincarnate .. my toon goes to lvl1 to lvl20 and then i must gain the xp to reach again lvl30.
Each quest i do at lvl21,22..etc at reaper difficulty, it's valid as first time bonus ?

Also, once at lvl 30, if i do a quest i will get a 'first time bonus' ?

or i must do a True Heroic Reincarnate only to have that ?

please help me to understand. thanks