Bene...on my Irwin, we installed the 4 winds pole to a bracket on the transom then attached two angled braces from points on the pole to the side and aft decks (plus two lower brackets to the pulpit). Rather than simply attach the angle braces we put the pole under some tension before tightening up the braces. This helps minimize any vibration and transmission of noise thru the hull and I think makes a discernable difference when down below.
We were quite happy with the 4 winds and I got roughly 60 amphrs a day from ours in the Bahamas over time. Obviously...some days we got none...other days we got all we could handle! Here's a pic...don't know if any of this is applicable to you or the air-x install but you may find something adaptable.
windy.JPG