Let me know what you think or if it is a viable list for a store championship

Looks like a fun list. I like Fett a lot, especially in epic games, but in a competitive 100 point game I prefer Kath Scarlet. Kath with PTL, Security Droid, and Engine Upgrade is especially brutal (lots of actions, mobility, and firepower). I don't like the Security Droid on Fett. Fett already rerolls dice with his pilot ability. Instead I would prefer Recon Specialist. Having a few focus tokens around to use when you reroll into eyeballs is nice.

I think Fett may grow in popularity if swarm lists make more of a comeback. Right now though there's a lot of players still rocking two ship lists such as Dash + Corran, Phantom + Decimator, and recently double Aggressors, etc. It often makes Fett's ability underwhelming, although ocassionally I still see a swarmy list (BBBBZ is popular).

I'm not a fan of Heavy Laser Cannon on the Scyks. It would be ideal to keep the Scyk at range 3 with HLC for as long as possible, but without a straight 1 manuever it's a bit trickier. Whenever I've tried it I've gotten one, maybe two good shots at the most with my HLC before the enemy flies right into my grill and I'm forced to use my primary weapon instead for rest of the game. Also Scyks can drop fast with only 3hp and those Heavy Lasers aren't cheap. I've had decent results with Mangler Cannon (those Decimators really hate them). Honestly I'm not sure how the Scyk is best flown. I think a lot of players are still figuring them out. I think they have a lot of potential though. For filler type ships I've been happier with spamming Headhunters, sometimes I throw Hotshots or Feedback Array on them.

Anyway, whatever you end up playing I wish you luck. Most importantly have fun!

By the way, this is how I might tweak the list, assuming you're commited to those pilots:

Boba Fett + Veteran Insticts + Recon Specialist

Black Sun Vigo + Autothrusters

Tansarii Point Veteran + Veteran Insticts + Heavy Scyk Interceptor + Mangler Cannon + Stealth Device

Total points: 99

Something like that. I'm not 100% sure on the Scyk upgrades, maybe drop Stealth for predator or Lone Wolf. Maybe replace Stealth with Hull or Shield. Maybe put an Engine Upgrade on Fett instead. I suppose it's a matter of taste. Also, it's worth considering downgrading the Scyk to a Cartel Spacer and upgrading the Star Viper to Guri in order to get the title for Advanced Sensors and an elite pilot upgrade.

If you want something a bit more competitive while staying within the scum faction this list is pretty nasty:

Kath Scarlet + K4 Security Droid + Push the Limit + Engine Upgrage

Black Sun Soldier x4

Of course if you want to be really cutthroat and play for the win you can't go wrong with Fat Han.

Hope this helps!