Yes,
I've only learned of shotgunning like 2 weeks ago from this forum. There is a thread on it, rather long and detailed, on the benefits and drawbacks of shotgun configuration.
Oh, if you are double biwiring and using two different cables, I have a tweak that might work so you won't hear the desparity between the better and the worse cable. I never heard of anyone doing this before, so I am proclaiming it my creation, and naming it cross double biwiring.
Like I explained before, I used to double bi-wire, but the weaknesses of the Midnight became very apparent in my system. I wanted to get another Argent, so I can take the weaker cable out of my system. But before I layed down the greens, I rewired the speaker cables.
My amp is designed to double bi-wire; it has two outputs on each side, left and right. I connected one single run of Argent on both the HF and LF positive on the amp side to the speaker HF and LF positive. And I connected the Midnights to both the speaker and amp's HF and LF negative.
This yielded a much balanced and coherent sound. I don't have two Argents to compare, but I doubt it would sound any different.
It wasn't until I got the Virtual Dynamics powercord, did the soundstage became too wide, then I removed to bi-wire and went with full range.