Hail Statesman,
I understand that permanent Rage may not be the intended use of this power. Perhaps another look at the tanker secondary sets, and if necessary, a balancing of these sets in comparison to each other would be appropriate.
Maybe you are trying to keep the bonuses of Rage without the penalties being mitigated by status protection powers? I am not familiar with Build-up: does it not allow permanent status? If so, maybe Rage should have some similar penalty and recharge time. Maybe the idea is for Super strength to be less than other tanker secondary sets, yet match those sets with the application of Rage?
Complete endurance drop may not be appropriate unless Rage is much better than Build-up and Super strength is comparable in power to the other tanker secondary sets.
Keep up the good work. Thank you for your time. I am looking forward to City of Villains. Thank you for your continuous efforts to improve City of Heroes.