I don't think RTE comes close to +12~14 EA10~12 Erde on Large, you would lose.
This is inconsistent with my calculations. They come very close.
At +12 RTE vs +12 Erde, (3x AS, vs 2x as EA10), vs large target, I calc 1% advantage for Erde on AB, 7% on CC. If you have sword mastery 5 (note: in the calc, there's no pulldown for weapon type - if you aren't wielding a sword, be sure to set sword mastery to 0), the CC advantage of Erde falls to 2%.
Also, the more other +% ranged mods you have, the less the extra 10% ranged damage mod on Erde matters, also the higher the refine, the better RTE compares. 40% ranged mod, or upgrading to +14 brings the AB difference to 0%.
Edited by DrAzzy, 12 December 2014 - 11:31 AM.