Bi-wire vs Shotgun wiring

[sfdude]

I wanted to see if anyone with D440 or D1000 Pro has done shotgun wiring of their bi-wireable speakers. If so, what are the differences compared to standard bi-wiring of speakers? And how is this configured on your particular speakers? Do you set one of the Devialet Pros to output in High-Pass mode and the other to output in Low-Pass mode? 

Have been confused as to what's the right configuration here.