For a couple of years we used the Equal-i-zer on a 4,500 lb 24' trailer behind my wife's Acura MDX. (We were right on rated capacity). It tracked very true, never had the tiniest bit of sway, and rode dead level at all times, regardless of (over)loading.
Then I read in the MDX handbook that they didn't allow WDH at all. It was time for a bigger trailer anyway
