I think slotting with the only spare from the 8pt is the wrong idea. You'd rather unstack the heavy 6pt to slot the 5pt.

              
 
              
 | | White is Player 2
score: 0 pip: 184 | Unlimited Game Jacoby | pip: 151 score: 0
Blue is Player 1 | |
| XGID=ab----E-CB--dCa--c-dB-----:1:-1:1:63:0:0:1:0:10 |
| Blue to play 63 |
| 1. | Rollout1 | 9/3 6/3 | eq: +0.370 |
| Player: Opponent: | 64.72% (G:25.98% B:2.45%) 35.28% (G:6.33% B:0.28%) | Conf.: ± 0.006 (+0.364...+0.376) - [100.0%] Duration: 19 minutes 21 seconds |
|
| 2. | Rollout1 | 20/14* 14/11 | eq: +0.354 (-0.016) |
| Player: Opponent: | 63.74% (G:26.76% B:2.97%) 36.26% (G:6.54% B:0.29%) | Conf.: ± 0.006 (+0.348...+0.360) - [0.0%] Duration: 22 minutes 35 seconds |
|
| 3. | Rollout1 | 20/14* 13/10 | eq: +0.336 (-0.034) |
| Player: Opponent: | 63.00% (G:27.02% B:3.05%) 37.00% (G:6.98% B:0.34%) | Conf.: ± 0.006 (+0.330...+0.342) - [0.0%] Duration: 22 minutes 33 seconds |
|
| 4. | Rollout2 | 20/14* 8/5 | eq: +0.279 (-0.091) |
| Player: Opponent: | 62.17% (G:24.27% B:2.52%) 37.83% (G:7.27% B:0.31%) | Conf.: ± 0.008 (+0.270...+0.287) - [0.0%] Duration: 12 minutes 12 seconds |
|
| |
1 5184 Games rolled with Variance Reduction. Dice Seed: 52121495 Moves: 3-ply, cube decisions: XG Roller
2 2592 Games rolled with Variance Reduction. Dice Seed: 7886738 Moves: 3-ply, cube decisions: XG Roller
|
eXtreme Gammon Version: 2.10
Here is a variant which shows that the theme here is to utilize the spares on the 6pt.

              
 
              
 | | White is Player 2
score: 0 pip: 184 | Unlimited Game Jacoby | pip: 153 score: 0
Blue is Player 1 | |
| XGID=ab----D-DB--dCa--c-dB-----:1:-1:1:63:0:0:1:0:10 |
| Blue to play 63 |
| 1. | XG Roller++ | 20/14* 14/11 | eq: +0.405 |
| Player: Opponent: | 65.36% (G:26.16% B:2.72%) 34.64% (G:5.89% B:0.22%) | |
|
| 2. | XG Roller++ | 20/14* 13/10 | eq: +0.382 (-0.023) |
| Player: Opponent: | 64.40% (G:26.45% B:2.85%) 35.60% (G:6.33% B:0.24%) | |
|
| 3. | XG Roller++ | 9/3 6/3 | eq: +0.367 (-0.038) |
| Player: Opponent: | 64.61% (G:24.30% B:2.11%) 35.39% (G:6.03% B:0.20%) | |
|
| 4. | XG Roller++ | 20/14* 8/5 | eq: +0.350 (-0.056) |
| Player: Opponent: | 64.24% (G:24.11% B:2.33%) 35.76% (G:6.57% B:0.25%) | |
|
eXtreme Gammon Version: 2.10