I am having a hard time finding level ground to measure my factory hitch on my 2017 Ridgeline RTL. I will be towing a Little Guy 5 wide with a recommended hitch height of 16". Does anyone know the hitch height of the RTL or the drop for the ball mount for 16". Also, any recommendations for ball mounts would be appreciated. I am thinking of a Curt pre-loaded mount. I don't want to send for something that won't fit. I have a Napa forged mount from a previous CRV and the shaft would not slide all the way into the factory hitch to line up the pin hole. Thanks in advance.