11/8 11/10 by a tiny bit over 8/4* Comparing 11/8 11/10 to plays that don't get hit on a 6 note that 6's mostly lose regardless, it removes some other shots, and gets a return on 66.
All the reasonable plays lead to thin doubles and huge takes. After 8/4* then a dance it is a strong double.
  White is Player 1
score: 0 pip: 74  Unlimited Game Jacoby  pip: 92 score: 0
Blue is Player 2  
XGID=BECBBabbabbAabb:0:0:1:31:0:0:1:0:10 
Blue to play 31 
1.  Rollout^{1}  11/10 11/8  eq: 0.2766 
 Player: Opponent:  42.69% (G:1.32% B:0.03%) 57.31% (G:14.51% B:0.23%)  Conf.: ±0.0037 (0.2802...0.2729)  [99.9%] Duration: 3 minutes 27 seconds 

2.  Rollout^{1}  8/4*  eq: 0.2861 (0.0095) 
 Player: Opponent:  44.01% (G:2.38% B:0.07%) 55.99% (G:24.29% B:0.48%)  Conf.: ±0.0051 (0.2912...0.2810)  [0.1%] Duration: 4 minutes 44 seconds 

3.  Rollout^{2}  9/8 9/6  eq: 0.3428 (0.0663) 
 Player: Opponent:  37.42% (G:1.06% B:0.02%) 62.58% (G:6.17% B:0.09%)  Conf.: ±0.0075 (0.3503...0.3354)  [0.0%] Duration: 20.7 seconds 

4.  Rollout^{2}  11/8 3/2  eq: 0.3701 (0.0935) 
 Player: Opponent:  37.23% (G:0.90% B:0.02%) 62.77% (G:8.42% B:0.11%)  Conf.: ±0.0099 (0.3800...0.3602)  [0.0%] Duration: 28.1 seconds 

5.  Rollout^{2}  13/12 11/8  eq: 0.4126 (0.1360) 
 Player: Opponent:  37.71% (G:1.32% B:0.03%) 62.29% (G:9.53% B:0.16%)  Conf.: ±0.0082 (0.4208...0.4044)  [0.0%] Duration: 24.5 seconds 

6.  Rollout^{2}  13/10 11/10  eq: 0.4519 (0.1753) 
 Player: Opponent:  39.39% (G:1.33% B:0.04%) 60.61% (G:14.92% B:0.23%)  Conf.: ±0.0101 (0.4620...0.4417)  [0.0%] Duration: 29.0 seconds 


^{1} 10368 Games rolled with Variance Reduction. Dice Seed: 56132000 Moves: 3ply, cube decisions: XG Roller
^{2} 1296 Games rolled with Variance Reduction. Dice Seed: 56132000 Moves: 3ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10
  White is Player 2
score: 0 pip: 88  Unlimited Game Jacoby  pip: 74 score: 0
Blue is Player 1  
XGID=BECBBaabbbbAabb:0:0:1:00:0:0:1:0:10 
Blue on roll, cube action? 
Analyzed in Rollout  No double  Double/Take 
Player Winning Chances:  57.617% (G:14.769% B:0.237%)  57.360% (G:14.216% B:0.207%) 
Opponent Winning Chances:  42.383% (G:1.272% B:0.026%)  42.640% (G:1.276% B:0.025%) 
Cubeless Equities  +0.2894  +0.5568 
Cubeful Equities 
No double:  +0.1390 (0.1295)  ±0.0074 (+0.1316..+0.1463) 
Double/Take:  +0.2685  ±0.0095 (+0.2590..+0.2780) 
Double/Pass:  +1.0000 (+0.7315) 

Best Cube action: Double / Take 
Rollout details 
1296 Games rolled with Variance Reduction. Dice Seed: 56132000 Moves: 3ply, cube decisions: XG Roller


Double Decision confidence:  100.0% 
Take Decision confidence:  100.0% 
Duration: 48.3 seconds 
eXtreme Gammon Version: 2.10
  White is Player 2
score: 0 pip: 88  Unlimited Game Jacoby  pip: 78 score: 0
Blue is Player 1  
XGID=BECBBabbbbaabbA:0:0:1:00:0:0:1:0:10 
Blue on roll, cube action? 
Analyzed in Rollout  No double  Double/Take 
Player Winning Chances:  55.903% (G:23.038% B:0.471%)  55.953% (G:24.325% B:0.468%) 
Opponent Winning Chances:  44.097% (G:2.298% B:0.070%)  44.047% (G:2.444% B:0.074%) 
Cubeless Equities  +0.3295  +0.6836 
Cubeful Equities 
No double:  +0.1161 (0.1735)  ±0.0061 (+0.1100..+0.1222) 
Double/Take:  +0.2896  ±0.0136 (+0.2760..+0.3032) 
Double/Pass:  +1.0000 (+0.7104) 

Best Cube action: Double / Take 
Rollout details 
1296 Games rolled with Variance Reduction. Dice Seed: 56132000 Moves: 3ply, cube decisions: XG Roller


Double Decision confidence:  100.0% 
Take Decision confidence:  100.0% 
Duration: 57.7 seconds 
eXtreme Gammon Version: 2.10
  White is Player 1
score: 0 pip: 78  Unlimited Game Jacoby  pip: 88 score: 0
Blue is Player 2  
XGID=BECBBabbbbaabbA:0:0:1:00:0:0:1:0:10 
Blue on roll, cube action? 
Analyzed in XG Roller++  No double  Double/Take 
Player Winning Chances:  74.137% (G:2.242% B:0.040%)  74.307% (G:2.105% B:0.031%) 
Opponent Winning Chances:  25.863% (G:3.951% B:0.091%)  25.693% (G:3.988% B:0.105%) 
Cubeless Equities  +0.4651  +0.9331 
Cubeful Equities 
No double:  +0.6894 (0.1224)  
Double/Take:  +0.8118  
Double/Pass:  +1.0000 (+0.1882) 

Best Cube action: Double / Take 
eXtreme Gammon Version: 2.10