I would absolutely love to see this. It's especially frustrating when you've trying to learn a new job in a more active environment. I want to be doing actual dungeons, trials, 24 mans, etc. but I don't want to just be restricted to the 2 or 3 things I might be "on level" for at that particular moment. While I realize scaling would be an issue I'd honestly be perfectly fine getting hit with some sort of "anti-echo" debuff to force me in line with the conternt.. I don't care about power level, make me relatively weaker than the lower level people I may be grouped with if you have to, I just want to have my full tool kit available.