Honestly they will both do what you want reliably. No need to spend the extra 400 on the TS.
While I love S&W and own 2 different ones including a Sport II and the T, they are not my “Go To” AR’s.
If you are going to Spend TS money on an AR, consider a Daniel Defense or Bravo Company.
I use my Daniel Defense rifles for all my Training Classes. They just (IMHO) are a better weapon for a 4 day, 1,000 round Training course, specially in the Desert heat and sand that I train in.
For range use or home defense, ANY of the above mentioned rifles will not let you down. Even the Sport II (Which you can buy 3 of for them price of the TS)
Training and Ammo. That’s where you want to spend money.
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