Thanks, Mike, for good variants. Here are the rollouts.

              
 
              
 | | White is Player 2
score: 0 pip: 167 | Unlimited Game Jacoby Beaver | pip: 145 score: 0
Blue is Player 1 | |
XGID=aBaB--C-A--AeD---c-e----B-:0:0:1:00:0:0:3:0:10 |
Blue on roll, cube action? |
Analyzed in Rollout | No double | Double/Take |
Player Winning Chances: | 63.04% (G:32.75% B:0.60%) | 63.32% (G:34.28% B:0.56%) |
Opponent Winning Chances: | 36.96% (G:8.64% B:0.41%) | 36.68% (G:8.98% B:0.47%) |
Cubeless Equities | +0.504 | +1.040 |
Cubeful Equities |
No double: | +0.662 (-0.092) | ±0.009 (+0.652..+0.671) |
Double/Take: | +0.753 | ±0.014 (+0.740..+0.767) |
Double/Pass: | +1.000 (+0.247) |
|
Best Cube action: Double / Take |
Rollout details |
2592 Games rolled with Variance Reduction. Dice Seed: 9595161 Moves: 3-ply, cube decisions: XG Roller
|
|
Double Decision confidence: | 100.0% |
Take Decision confidence: | 100.0% |
Duration: 13 minutes 56 seconds |
eXtreme Gammon Version: 2.10

              
 
              
 | | White is Player 2
score: 0 pip: 165 | Unlimited Game Jacoby Beaver | pip: 145 score: 0
Blue is Player 1 | |
XGID=aB-Ba-C-A--AeD---c-e----B-:0:0:1:00:0:0:3:0:10 |
Blue on roll, cube action? |
Analyzed in Rollout | No double | Double/Take |
Player Winning Chances: | 63.92% (G:33.88% B:0.55%) | 64.29% (G:35.99% B:0.54%) |
Opponent Winning Chances: | 36.08% (G:8.15% B:0.42%) | 35.71% (G:8.50% B:0.49%) |
Cubeless Equities | +0.537 | +1.123 |
Cubeful Equities |
No double: | +0.660 (-0.174) | ±0.010 (+0.650..+0.669) |
Double/Take: | +0.834 | ±0.015 (+0.819..+0.849) |
Double/Pass: | +1.000 (+0.166) |
|
Best Cube action: Double / Take |
Rollout details |
2592 Games rolled with Variance Reduction. Dice Seed: 34841930 Moves: 3-ply, cube decisions: XG Roller
|
|
Double Decision confidence: | 100.0% |
Take Decision confidence: | 100.0% |
Duration: 12 minutes 15 seconds |
eXtreme Gammon Version: 2.10

              
 
              
 | | White is Player 2
score: 0 pip: 164 | Unlimited Game Jacoby Beaver | pip: 145 score: 0
Blue is Player 1 | |
XGID=aB-B-aC-A--AeD---c-e----B-:0:0:1:00:0:0:3:0:10 |
Blue on roll, cube action? |
Analyzed in Rollout | No double | Double/Take |
Player Winning Chances: | 66.32% (G:38.44% B:0.55%) | 66.60% (G:40.79% B:0.60%) |
Opponent Winning Chances: | 33.68% (G:7.39% B:0.37%) | 33.40% (G:7.84% B:0.40%) |
Cubeless Equities | +0.639 | +1.327 |
Cubeful Equities |
No double: | +0.735 (-0.265) | ±0.007 (+0.728..+0.742) |
Double/Take: | +1.058 (+0.058) | ±0.013 (+1.045..+1.071) |
Double/Pass: | +1.000 |
|
Best Cube action: Double / Pass |
Rollout details |
2592 Games rolled with Variance Reduction. Dice Seed: 25201838 Moves: 3-ply, cube decisions: XG Roller
|
|
Double Decision confidence: | 100.0% |
Take Decision confidence: | 100.0% |
Duration: 10 minutes 49 seconds |
eXtreme Gammon Version: 2.10
Now, let's add the 10th checker in the zone.

              
 
              
 | | White is Player 2
score: 0 pip: 167 | Unlimited Game Jacoby Beaver | pip: 143 score: 0
Blue is Player 1 | |
XGID=aBaB--C-A--BeC---c-e----B-:0:0:1:00:0:0:3:0:10 |
Blue on roll, cube action? |
Analyzed in Rollout | No double | Double/Take |
Player Winning Chances: | 65.00% (G:35.27% B:0.63%) | 65.31% (G:37.17% B:0.55%) |
Opponent Winning Chances: | 35.00% (G:8.07% B:0.40%) | 34.69% (G:8.31% B:0.47%) |
Cubeless Equities | +0.574 | +1.191 |
Cubeful Equities |
No double: | +0.713 (-0.201) | ±0.014 (+0.699..+0.727) |
Double/Take: | +0.914 | ±0.021 (+0.893..+0.935) |
Double/Pass: | +1.000 (+0.086) |
|
Best Cube action: Double / Take |
Rollout details |
1296 Games rolled with Variance Reduction. Dice Seed: 25201838 Moves: 3-ply, cube decisions: XG Roller
|
|
Double Decision confidence: | 100.0% |
Take Decision confidence: | 100.0% |
Duration: 6 minutes 17 seconds |
eXtreme Gammon Version: 2.10

              
 
              
 | | White is Player 2
score: 0 pip: 165 | Unlimited Game Jacoby Beaver | pip: 143 score: 0
Blue is Player 1 | |
XGID=aB-Ba-C-A--BeC---c-e----B-:0:0:1:00:0:0:3:0:10 |
Blue on roll, cube action? |
Analyzed in Rollout | No double | Double/Take |
Player Winning Chances: | 65.72% (G:36.07% B:0.56%) | 66.25% (G:38.85% B:0.55%) |
Opponent Winning Chances: | 34.28% (G:7.66% B:0.37%) | 33.75% (G:7.95% B:0.42%) |
Cubeless Equities | +0.600 | +1.271 |
Cubeful Equities |
No double: | +0.721 (-0.279) | ±0.002 (+0.719..+0.723) |
Double/Take: | +1.001 (+0.001) | ±0.003 (+0.998..+1.004) |
Double/Pass: | +1.000 |
|
Best Cube action: Double / Pass |
Rollout details |
46656 Games rolled with Variance Reduction. Dice Seed: 25201838 Moves: 3-ply, cube decisions: XG Roller
|
|
Double Decision confidence: | 100.0% |
Take Decision confidence: | 76.0% |
Duration: 3 hours 38 minutes |
eXtreme Gammon Version: 2.10
The last position is a good reference position, I believe.