Just an old BMXer from the old days.  I rode a Quadangle as a kid but I always wanted a PK.  I have a 12 year old son that rides and we enjoy it together.  I recently bought an 07 PK and an 08 Quad off Ebay and plan to put them both together.  The Quad will be similiar to the one I had as a kid but the PK Ripper will be a bit more modern and upgraded.