I reckon manually cooling the beans with various types of colanders and fans will work significantly better than the cooling cycle on the Imex. I know Andy has even tried using a spray bottle with water to help cool the beans. Light mist will evaporate on contact with the hot beans, just dont overdo it. Tipping beans from one colander to another through a jet of fan forced air is a good method as well, since the fan will blow off most of the leftover chaff while the beans, which are more dense, will fall into the colander.
I myself use a crappy box heater, fan only setting, with a Pearsons Florist box acting as a shroud, and a small mesh "food cover" turned upside down. I then stir the beans with the back end of a bamboo chopstick. Beans are cool in a couple minutes, but this is fairly slow compared to some of the other CSers setups.