Also there is this guy. Cost me $75 plus shipping to and from FL. It made a world of difference on my Thunderbird 1600 seat. Roadworthy may disagree but it was customized for a 269 lb. old guy, not a 210lb young jock.
http://greatdaytoride.com/


"Catching a yellow jacket in your shirt at seventy miles per hour can double your vocabulary" Author unknown