https://mrtrailer.com/shocker-hitch.htm, Shocker hitch has been a long time favorite for hot shotters. It's a air hitch with a new Shift Lock 30k gooseneck coupler. Also new is a unique gooseneck lock. Started over 10 years ago and they measure all the gooseneck trailers to get the right angle for the thru-pin. The different trailers are listed on their website. This is our first Zoom video with Bob Sagen the inventor and CEO. , gooseneck air ride, gooseneck cushion