I love playing rebels but some of the pilots in the slave holder, i mean empire, faction are catching my eye. Are there any hard hitting four ship imperial lists worth trying?

I've got 2 Interceptor squadrons that I've yet to try but if you want to take them for a whirl here they are:

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Fel faux Fel (100)

Tetran Cowall — TIE Interceptor 24
Veteran Instincts 1

Soontir Fel — TIE Interceptor 27
Push the Limit 3
Targeting Computer 2
Autothrusters 2
Royal Guard TIE 0

Saber Squadron Pilot — TIE Interceptor 21
Swarm Tactics 2

Alpha Squadron Pilot — TIE Interceptor 18

If proxying isn't your groups thing, then Autothrusters could easily be turned into PTL for Tetran Cowall or something else you want to put the 2 points towards.

The Saber and Alpha are ment to be flown near each other freeing up Cowall and Fel for flanking.

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non-ptl Ints and an Eye (99)

Tetran Cowall — TIE Interceptor 24
Stay On Target 2

Turr Phennir — TIE Interceptor 25
Squad Leader 2
Experimental Interface 3

Lieutenant Lorrir — TIE Interceptor 23

"Backstabber" — TIE Fighter 16
Engine Upgrade 4

This quadruplet was thought up while trying to find a decent squad in the Mid-PS range. Phennir and Lorrir paired with Backstabber and Cowall on the flanks. Thanks to EI and Squad Leader once Phennir attacks he can take a stress to pass a second action to his wing mate once the board has settled.

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If you decide to try them let me know how it goes. Once I use them I'll let you know if I've figured out some fun quirky maneuvers.