Throughout the years, crystals have been theorized as providing some use in scientific development. take the quartz clock for example. Personally, I find the use of crystals for power as an overall ingenious idea, although how to implement them would require strenuous balancing. However, power not only works in x,y, and z. it also works in straight lines and for really huge vessels, in 10x10x10 blocks. I would agree with wizard if it were not for the fact that power in it\'s current format is indeed limitless in ideas for crafting a ship. it\'s what you do with them that limits their usefulness.