We can really do some damage now from a /ra aspect; however I would not hold it against someone if they didnt have /rng ready for tojil.
According to my experience since 75 era:
1. Melee COR with multi-hit weapon @lv 75 bird camp
2. Buffed WF COR/BLM or COR/BLU in VW before SoA, especially on B.rex and 3 KI PW BC
3. Super buffed COR/WAR melee + last stand in zerg situation before SoA
4. Melee COR in delve 1 Ceizak
Those 4 situations are where COR were closest to real DD in terms of dmg. I've never manage to, or seen anyone do close to real DD dmg with /RNG and only shoot. The speed of /ra is just that slow, compare with RNG the gap is pretty big too, since COR shoot much slower than RNG, but they swing daggers at same the speed as other melee in melee mode, and WF was more OP than physical WS on certain NM at that time.
COR /ra and spam WF used to work very well in VW if WF is buffed properly, but that's mostly because TP wing spam close the gap.
Whm sub was never needed for Legion, if it was you had terrible support.
Sorry if /WHM saved me my precious time to find a god like support that can cure 5 melee and haste everyone with zero error. Better than spend hours and hours finding a god like WHM so I can DD, only to land a few bullets on NM before they die.
No SJ is ever "needed" for this job, you can even play with no SJ at all. Just that some SJ works better for others.