"Tanks and Healers do too much Damage..."

[Paladinleeds]

Any solo instance with a DPS check would need a few tries I'd guess to get enough echo going.

I covered that already. There's a buff you get called "Breaking boundaries" or something, with description text "Breaking limits in a way only a warrior of light can." Dependent on the role you play, the buff changes (DPS/tanks I believe provides a passive regen, with healers I believe it increases damage done). Just tweak the numbers with that (and possibly add the damage up buff to tanks as well), and problem solved.