I haven't tried any Ghost products on a Ruger, but I have been pleased with the trigger feel of the Rocket I installed in my Glock. Combined with a 25 cent trigger job, the Rocket gave the pistol a smoother, slightly lighter feel (I used the 6 lb. firing pin spring instead of the 4 lb. one). It still feels like a Glock trigger, but the trigger feel is a good bit better than the stock connector, so it was worth it for me.
The Rocket connector did eliminate overtravel, but care must be taken not to remove to much metal or you will get overtravel. I trimmed and test-fitted the pistol close to a dozen times to make sure that I didn't over do it. However, if you do take off too much metal, Ghost states they will replace the connector.
The Tactical and Rocket require trimming for overtravel, but the Ultimate is almost drop-in other than you're supposed to make sure the angle and clearance are correct. Their website has detailed instructions.
Edit: I just saw where you mentioned travel, and none of the Ghosts will help with that other than for overtravel, but one of the 3.5 lb. ones should help lighten the trigger some depending on which springs you use.