I towed our KZ Spree for 6 yrs with an Equal-i-zer and while it certainly deserves the good reputation it has there's no question it's an older design that's based on direct metal to metal contact which results in it's also well deserved reputation for being noisy. Yes, one can lubricate the pivot points or add the manufacturer's sway brackets to mitigate the noise but you and everyone else in the campground will still know you're towing with an Equal-i-zer. :E Setting it up is also annoying in that head angle and therefore the amount of weight being transferred to the front steer axle requires changing the number of washers in the head and that can only be achieved by disassembling the head and starting over each time you do it. My current trailer doesn't require it but if I were to do it again I'd instead go with a Blue Ox Sway Pro which addresses all of the drawbacks to the Equal-i-zer, including the noise issue.
