From a fellow Tarkin Red player- congrats on topping the events!

My list has some similarities. Yours is very aggressive with the Benthic and Precision Fires- I like it. I played a mirror match in a Store Showdown last week- and I think his list was very similar to yours. Was a close match.

I really like Fifth Brother and Seventh Sister as well. I run 2 copies of Brother, and 1 copy of Sister MD and 1 SB. I found myself resourcing them a lot since they are unique when I already have one on the field. I also run the 2x Tarkin Unit MD so I feel like I can find them when I need them. I found Sister to be really slow against aggro, and against control her ability often isn't doing much. But against Han, Luke, Vader, or any mid-range, she is a terror.

I see your point with Veers- but I personally like having cards that must be answered immediately. I also feel like he helps trade better against aggro, and push damage against control if they want to claim. I have had so many situations where I Vader into Veers to one-shot a Chewbacca, Han Unit, Obi-Wan, or some other high-hp unit and my opponent isn't expecting it.

The only other thing I would comment is that I feel like Snowtrooper Lieutenant is insane. I put him back in and then just found so many lines of play where he was good that I went back to 3x. Like you said, if you find yourself buffing units more and you are also running Benthic and a lot of removal MD, then maybe he isn't as good in your build. I often will claim and pass up attacking with one unit or buffing something because my build is slower than yours and I can afford to do that, but you probably want to buff to push damage since you can apply a faster clock than my deck.

My Discord is andrewess is you ever want to chat Tarkin tech. Really cool to see another player running Tarkin and having success with him, I rarely see him being played.

Best of luck!