I think adding a 4-hours cooldown to Jump Drives will help Discovery more than being used in the manner discripted in the OP (A bit unrelated to the topic I know)
-First it will nerf jump trading GREATLY
-It will give sense to build Jump Gates and use Jump Holes inRP, why have jump gates or use the risky Jump Holes that have range limit when you can freely jump from Omicron Gamma to Languedoc?
-Jumping in and out of battles won't be possible anymore, if it was inRP why should armies in FL universe try to flank other armies using Jump Holes? Just jump in and out with your fleets to their capital and be done with it.
Perhaps add a cooldown that is based on distance jumped with a minimum time of cooldown?
![[Image: p2SKLap.jpg?1]](http://i.imgur.com/p2SKLap.jpg?1)