EpsilonSigma

It depends entirely on the mods used. For example, both Technic and Tekkit make use of Equivalent Exchange, which possibly due to the massive "It's cheating" complaints is now being entirely rebalanced and basically started from scratch. The initial pre-release version of it contains very little and condensers etc. are never returning. Source: http://www.minecraftforum.net/topic/1540010-equivalent-exchange-3-pre1/ That means that one mod technic/tekkit would need to keep on going as it is, is now either going to have to be waited on for full development or removed from the modpack.