Tangent Flatland Jam – 10/08/06 Posted on April 21, 2016 by Effraim — Leave Comments ↓ Leland Lavender just sent in some contest news, the Tangent Flatland Jam that is going down on 10/08/06 is now a AFA sanctioned event. Leland is giving away a 87 Osborn Hustler for the Old School class.