Just bought 2017 RAV4 LE and lovin' it so far. Need to tow a small 14 ft jon boat on single axle trailer (16ft). This should easily be less than 1500 lb that is max. rated towing capacity for car. I got a deal on Class 3 tow hitch and want to have that installed. Realize that Class 3 hitch is well over 1500 towing capacity and will always make sure never exceed that. So, any reason why can't use Class 3 hitch other than may be may be "overkill?" Thanks.