I think chain drives are interesting because they require at least basic knowledge of logic to implement them. I think we should have more types of systems that are put together, because it adds something interesting to the game. There are currently pros and cons to chain drives, and I like those pros and cons.
But, if some people want an alternative system, I'll bounce an idea off you guys here. How about jump drives use a special kind of liquid energy, which can be stored in tanks? You then connect a jump drive to this and it uses a certain amount with each jump, depending on the size of the ship. A separate device would be used to convert energy to the special the liquid warp energy. This way it would allow a person to "charge" it up when it isn't in use, but would also require a person to wait if it's all used up. Perhaps a jump drive could emit a logic signal when left-clicked and display the total charge available on the icon when connected to a warp tank system. Within this system, someone may wish to build multiple tanks for redundency, in case one is damaged. They could also balance the speed of charge and the size of the tank for their ship. If someone wants a ship that can jump 10 times, then need to wait on a recharge, they can. If someone wants to build a small jumpship that charges quickly, they can do that as well. And in addition, there could be some interesting looking tanks that fill up and empty to give some animation to the whole jump drive process within the actual ship. They could also have separate energy converters which stay on all of the time to provide a trickle charge to the warp tanks, so that they refill while parked.
I think this would be a more interesting approach. What do you guys think?