Whilst Jek can essentially continue to reveal red manoeuvres and shed stress tokens, the thought of taking facedown damage cards that bypass shields isn't that promising. There are some gimmicky builds floating around and with the recent addition of Vectored Thrusters, they may have merit.
Push The Limit alongside R5-D8 gives you a chance to repair any damage over time that is happening to the ship. Predator gives you the usual dice modifying ability without taking an action though.
I've read about Experimental Interface on him, but I think for what you're paying for, that's getting astronomical in terms of points versus efficiency.