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So... no, I can't edit it out
I would have to say there probably isn't too much that a bow can offer that Spectral Hand doesn't already do better, other than maybe being "different". And when SH works with 2H weapons, and the damage is boosted by Astral Lore (along with the damage of the summons when the appropriate mods are applied) IMO, it would lead back to the 'typical' summoner for Niob-play.
But it would be different, and so I like it BTW, have you ever tried Frenzied Rampage with an energy gun? Pew-pew ftw
Yet again, I could swap some skills so that I could focus on Frenzied Rampage and other CAs which can be used while ranging.
And no, I haven't tried it out (yet)