for 6bb I'd just be calling here and taking a note. Expect our A high to be good sometimes, if we lose then I'll make a useful note on how they play smaller PP.

Hand looks fine imo.

Preflop standard. X/f is reasonable with some frequency. River is a x/f. We'll likely be good with a reasonable frequency if we were to x/f river, but probably a shade low of what we need for an exploitative call. I imagine x/f river is slightly better than x/c.

I play it exactly the same way.

Bet check bet lines at 5NL are rarely bluffs at 5NL. I'd expect to see a medium pair here a lot of the time, or Tx which has now gone into pot control mode worrying about been trapped by 4x