2-7 TD 0.50/1.00 - line check

[jbrennen]

PokerStars Game #13014292168: Triple Draw 2-7 Lowball Limit ($0.50/$1.00) - 2007/11/03 - 12:04:35 (ET)
Table 'Seginus' 6-max Seat #2 is the button
Seat 1: Hero ($20 in chips)
Seat 2: FolderA ($14.05 in chips)
Seat 3: FolderB ($7.75 in chips)
Seat 4: PlayerA ($2.10 in chips)
Seat 5: PlayerB ($31.10 in chips)
Seat 6: Villain ($25.75 in chips)
FolderB: posts small blind $0.25
PlayerA: posts big blind $0.50
Hero: posts big blind $0.50
*** DEALING HANDS ***
Dealt to Hero [2c 7s Ac 6d 3h]
PlayerB: calls $0.50
Villain: calls $0.50
Hero: raises $0.50 to $1
FolderA: folds
FolderB: folds
PlayerA: calls $0.50
PlayerB: calls $0.50
Villain: calls $0.50
*** FIRST DRAW ***
PlayerA: discards 4 cards
PlayerB: discards 3 cards
Villain: discards 2 cards
Hero: discards 1 card [Ac]
Dealt to Hero [2c 7s 6d 3h] [8s]
PlayerA: checks
PlayerB: checks
Villain: checks
Hero: bets $0.50
PlayerA: folds
PlayerB: calls $0.50
Villain: calls $0.50
*** SECOND DRAW ***
PlayerB: discards 1 card
Villain: discards 1 card
Hero: stands pat on [2c 7s 6d 3h 8s]
PlayerB: checks
Villain: checks
Hero: bets $1
PlayerB: calls $1
Villain: calls $1
*** THIRD DRAW ***
PlayerB: discards 1 card
Villain: stands pat


First hand at the table, which is why I posted out of position.

Do I discard my 8 here on the third draw? With Villain ready to call my pat hand down, I'm thinking that an 8-7-6 is no good. It seems quite obvious that Villain has a made 8 -- a made 7 would have probably bet or C/R'd after the second draw. A made 9 might be willing to call me down heads up, but with PlayerB still drawing, I don't see Villain standing pat on a 9.

Is breaking up the 8-7-6 standard here, a judgment call, or is it terrible?