Fab, those are exactly my thoughts about going from a Omni 10 to a 20. The longer length would be perfect, and the added stability should easily hold the Qs8's in the angled position... Keep us posted on what you do, I may follow your steps. ;\)

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85