2-7, Last round math.

[Biggle10]

Triple Draw 2-7 Lowball Limit ($2/$4) (converter)

SB ($70), Seat 2
BB ($40), Seat 3
UTG ($84.50), Seat 4
MP ($76), Seat 5
Hero ($54), Seat 6
Button ($140.50), Seat 1

Button at Seat 1.
SB posts $1. BB posts $2.

Hand: [Qc 7s 2s Jh 4s]

Round 1: (1.50 SB)

<font color="green">UTG calls. </font><font color="#666666">MP folds. </font><font color="red">Hero raises. </font><font color="green">Button calls. </font><font color="#666666">SB folds. </font><font color="green">BB calls. </font><font color="green">UTG calls. </font>
BB takes 2. UTG takes 2. Hero discards Qc Jh. Button takes 2.

Hand: [7s 2s 4s Ad 2d]

Round 2: (8.50 SB)

<font color="green">BB checks. </font><font color="green">UTG checks. </font><font color="green">Hero checks. </font><font color="green">Button checks. </font>
BB takes 2. UTG takes 2. Hero discards Ad 2s. Button takes 2.

Hand: [7s 4s 2d 6s 3c]

Round 3: (4.25 BB)

<font color="green">BB checks. </font><font color="green">UTG checks. </font><font color="red">Hero bets. </font><font color="green">Button calls. </font><font color="#666666">BB folds. </font><font color="green">UTG calls. </font>
UTG takes 1. Hero stands pat. Button takes 1.

Hand: [7s 4s 2d 6s 3c]

Round 4: (7.25 BB)

<font color="green">UTG checks. </font><font color="red">Hero bets. </font><font color="red">Button raises. </font>

OK, this may seem retarded but I'm not sure what to do here. I'm not folding but Button in question NEVER raises anything but sevens.
So..
If villain has #1. I lose 2 more bets by 3-betting and villain capping.
If villain has #2. We break even.
If villain has #3 or #4. I gain one more bet.

So based on combinations, what I do doesn't make a difference in terms of EV, correct?

Based on what I am holding/discards is any hand more likely in villain's hand?