The tentative dates are September 10 -14, 2014 for a TDI Advanced Nitrox and Deco Procedures course at Gilboa Quarry in Ohio. Right now I have two students with... the possibility of a third. That means there is at least one spot open. If you are interested shoot me a message and I will send you the class outline, equipment list, and costs. This class is open to back mount and sidemount divers! Ask me about getting into sidemount before the class!