NL20 - Flopping monsters, should I slow down sometimes?

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Im just starting to realize how bad I am at this game.

Both villains are basically unknowns, my image is c-bet almost always when I am the preflop raiser

Titan No-Limit Hold'em, $0.10/$0.20BB


Dealt to hero K [img]/images/graemlins/heart.gif[/img] K [img]/images/graemlins/diamond.gif[/img]

UTG+1 ($19.68)
UTG+2 ($18.66)
Hero ($20.00)
MP2 ($5.48)
MP3 ($18.25)
CO ($4.24)
Button ($10.73)
SB ($19.00)
BB ($40.39)
UTG ($16.76)

<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to 0.8</font>, <font color="#666666">5 folds</font>, BB calls $0.60,

Flop: 6[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/diamond.gif[/img] ( $1.7 )
BB checks, <font color="#CC3333">Hero bets $1.00</font>, <font color="#666666">1 folds</font>,

Final Pot: $2.62

Titan No-Limit Hold'em, $0.10/$0.20BB

Dealt to hero K [img]/images/graemlins/club.gif[/img] K [img]/images/graemlins/spade.gif[/img]

UTG ($18.31)
Hero ($38.33)
UTG+2 ($20.00)
MP1 ($20.17)
MP2 ($16.22)
MP3 ($14.94)
CO ($28.09)
Button ($19.40)
SB ($4.28)
BB ($30.56)
<font color="#666666">1 folds</font>, <font color="#CC3333">Hero raises to 0.8</font>, <font color="#666666">2 folds</font>, MP2 calls $0.80, <font color="#666666">4 folds</font>, BB calls $0.60,

Flop: K[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img] ( $2.7 )
BB checks, <font color="#CC3333">Hero bets $1.80</font>, <font color="#666666">2 folds</font>,

Final Pot: $4.37

Slowing down felt wrong in both hands, but Im wondering if I'm missing some value by basically never slowplaying.