I had too much fun doing this.  My next step is to re-engineer a new platform that is less ghetto and another 4 to 6 feet taller.  I already have a new design rolling around in my head.  This swing needs to be tall enough to scare the big boys and achieve a 40 foot drop.  Then I will stop building the Tower of Babel.  That or I mysteriously become unable to communicate with myself.