Has anyone tried any lists that combine Colonel Jendon with any TIE Advanceds carrying ATCs? I never use Jendon but his ability probably works better here than anywhere else.

I was thinking of a list along these lines:

Darth Vader (29) - Total: 37

• Proton Rockets - 3
• TIE/x1 - 0
• Engine Upgrade - 4
• ATC - 1

Juno Eclipse (28) - Total: 29

• TIE/x1 - 0
• Advanced Targeting Computer - 1

Colonel Jendon (26) - Total: 32

• Weapons Engineer - 3
• ST-321 - 3

This leaves 2 points to play with. My major fear is that my TIE Advanceds will have to shoot forward to do their thing as usual and the moment they leave Range 1 of Jendon then they'll be very unlikely to be able to use his ability, and Jendon can't exactly catch back up. What do you think? Does Jendon have a place alongside Advanced Targeting Computer?

Your fear is actually how the list would play out in most scenarios. You could try and slow roll for a few turns to get the first two target locks passed to Eclipse and Vader, but after that, the title and Jendon's ability are not going to really be supporting you. It MIGHT be worth it to try without Weapons Engineer and use the Emperor instead. You'd have to shuck some points from elsewhere (like losing Engine or Prockets on Vader). This actually wouldn't hurt you at all losing Weapons Engineer because you still need two turns to pass the locks out.

With the Emperor, your shuttle would have a purpose beyond the first two rounds, but it is still a larger point investment than most would like.

Go with Marek Stele with Advanced Homing Missiles instead of Juno, Frees up a point and you get to choose which Crit you want to give your target. Then take off the title from Jendon, for a total of 6 points. Add to Jendon: Mara Jade, Anti pursut lasers, and Enhanced scopes. Use Jendon as a blocker, and anyone that hits him possibly takes damage as well as gets a stress.