Thanks man anyway,I wish there was a way!
I think Grand Matron Bows have too high Treasure Class to be dropped from monsters. At least I never saw any when I played 1.07.
Well 1.07 is known for its bugs and weird things. But I wouldn't have my hopes high and certainly wouldn't try to seriously farm it in any way...
would be good if someone who has it , gave us hint!
I'll find another solution to my Amazon and focus on racking Disciple .. no sign of stable Dusk Shroud rack though.. :/