The equalizer is the brand of setup I have. I set it up to not really to put much on the hitch. More so just enough to give pressure for sway. It is also a sway controller and that's 90 percent of the reason I used it. Having never towed with the x5 I was unsure of how it would handle the sway so I used it and am 100% glad I did. Towing with the x5 without sway control on ur trailer at highway speeds with big rigs and wind is pure crazy IMHO. The prodigy wireless controller worked great once I Put resistors on the LED taillights I have on the trailer. Without incandescent bulbs or a resistor in parallel to the lights the x5 stops sending power to the trailer brake light after initial glow, which is the signal that turns the brake contoller on. It worked fine on manual but wanted the full effect. Something is up with the light module that controls the trailer lights, it doesn't like LED. But there is a work around. The extra coin for the controller was well worth it, I didnt want to hack into that wiring not knowing what to expect. And I didn't have to mount that ugly thing under my dash. The hand held controller hung out in my cup holder.