I believe option #2 will work with 4 powerpoles?as well - at least that's how I used 'em. Cheaper, too.
To increase stiffness, you'll have to pin each of the sets together - I use the little black pin to lock each pair, although I understand you can use zipties too.
And yeah - works fine and looks better if the two clamps are on the interior.
Mike Yancey, KM5Z
Dallas, Texas
