I've run CLT on Snips with Heightened Perception and R4-P17. Seventh Fleet Gunner Jag and Sync console and R3 as her wing (any ARC really.) Nothing like four or five dice with full mods at I7. It takes a plan to get there though.
The combo doesn't do the work for you. You have to fly it "right" and make correctly timed decisions. I said in another thread, "You don't have to get something out of every upgrade every turn." I think it is more you have to get the most out of an upgrade at the correct moment.
Are you still playing 1st Ed. combo wing and trying to win in list-building? You have to earn the payoff from list-building combos in 2nd Ed.