He almost folded on flop which encouraged me to snap open shove the turn and he folded immediately. So it worked out well.
$1/$2 No Limit Hold'em Cash, 5 Players
CO: $317.60 (158.8 bb)
BTN: $680.14 (340.1 bb)
Hero (SB): $200 (100 bb)
BB: $191.30 (95.7 bb)
MP: $434.60 (217.3 bb)
Preflop: Hero is SB with 9

A

3 folds,
Hero raises to $4,
BB raises to $16, Hero calls $12
Flop: ($32) T

6

5
(2 players)
Hero checks,
BB bets $20,
Hero raises to $46, BB calls $26
Turn: ($124) Q
(2 players)
Hero bets $138 and is all-in,
BB folds
Results: $124 pot ($3 rake)
Final Board: T

6

5

Q
Hero mucked 9

A

and won $121 ($59 net)
BB mucked and lost (-$62 net)
This is the hand where I got the idea to try this semi bluff and it happened about 3 orbits before my attempt with my NFD on another table at the same site against another regular.
The villain here got very unlucky with me hitting the nuts on turn but I actually took my time calling his shove putting him on a very strong hand and in retrospect I respect his line and I thought it was very convincing. His shove should fold out everything but the nutted range.
So I made my NFD bluff in a same fashion as this villain did to me which was to take his time and CR the flop and he snap open shove the turn.
$1/$2 No Limit Hold'em Cash, 6 Players
MP: $334.35 (167.2 bb)
CO: $222.70 (111.4 bb)
Hero (BTN): $203.80 (101.9 bb)
SB: $430.65 (215.3 bb)
BB: $483.50 (241.8 bb)
UTG: $232.66 (116.3 bb)
Preflop: Hero is BTN with Q

A
UTG folds,
MP raises to $6,
CO folds,
Hero raises to $14, 2 folds, MP calls $8
Flop: ($31) T

8

J
(2 players)
MP checks,
Hero bets $15.50,
MP raises to $58.12, Hero calls $42.62
Turn: ($147.24) K
(2 players)
MP bets $147.24, Hero calls $131.68 and is all-in
River: ($410.60) 3
(2 players, 1 is all-in)
Results: $410.60 pot ($3 rake)
Final Board: T

8

J

K

3
MP showed A

9

and lost (-$203.80 net)
Hero mucked Q

A

and won $407.60 ($203.80 net)
I do notice his flop
CR size is bigger than mine as suggested by players in this thread which makes me think he bluffs or semi bluffs more often and does it better than me for sure. His CR is high and he obviously follows through on the next street.
I have to admit my NFD semi bluff has way less outs than his.......