Evals, not rollouts, because problem with computer fans, i.e I fire up a rollout and the temperature reaches critical height and computer crashed. But eval should be sufficient here.
Lesson : You tend to play aggressive when the gammon race is close i.e around 50%. You tend to play safe when the gammon race is either very favourable or very unfavourable.
Original pos :

              
 
              
 | | White is Player 2
score: 0 pip: 128 | | Money session | pip: 50 score: 0
Blue is Player 1 | |
| XGID=-BBDEdB------------ccbab--:1:-1:1:44:0:0:0:0:10 |
| Blue to play 44 |
| 1. | XG Roller+ | 6/2(2) 4/0ff(2) | eq: +1.764 |
| Player: Opponent: | 100.00% (G:76.40% B:0.00%) 0.00% (G:0.00% B:0.00%) | |
|
| 2. | XG Roller+ | 4/0ff(4) | eq: +1.715 (-0.048) |
| Player: Opponent: | 97.28% (G:77.80% B:0.09%) 2.72% (G:0.00% B:0.00%) | |
|
| 3. | 3 ply | 6/2 4/0ff(3) | eq: +1.119 (-0.645) |
| Player: Opponent: | 80.37% (G:58.83% B:0.21%) 19.63% (G:0.00% B:0.00%) | |
|
eXtreme Gammon Version: 1.21
Modified pos, gammon race is close :

              
 
              
 | | White is Player 2
score: 0 pip: 114 | | Money session | pip: 50 score: 0
Blue is Player 1 | |
| XGID=-BBDEcB------------dcbab--:1:-1:1:44:0:0:0:0:10 |
| Blue to play 44 |
| 1. | XG Roller+ | 4/0ff(4) | eq: +1.347 |
| Player: Opponent: | 96.96% (G:41.89% B:0.06%) 3.04% (G:0.00% B:0.00%) | |
|
| 2. | XG Roller+ | 6/2(2) 4/0ff(2) | eq: +1.333 (-0.015) |
| Player: Opponent: | 100.00% (G:33.29% B:0.00%) 0.00% (G:0.00% B:0.00%) | |
|
| 3. | 3 ply | 6/2 4/0ff(3) | eq: +0.817 (-0.530) |
| Player: Opponent: | 80.64% (G:27.92% B:0.13%) 19.36% (G:0.00% B:0.00%) | |
|
eXtreme Gammon Version: 1.21
A different pos, where I the fish made a mistake. The gammon race is not close at all :

              
 
              
 | | White is Player 2
score: 0 pip: 136 | | Money session | pip: 35 score: 0
Blue is Player 1 | |
| XGID=-BCDcC---a---aa----cb--bb-:1:1:1:22:0:0:0:0:10 |
| Blue to play 22 |
| 1. | XG Roller+ | 5/3(3) 2/0ff | eq: +1.971 |
| Player: Opponent: | 100.00% (G:97.09% B:0.00%) 0.00% (G:0.00% B:0.00%) | |
|
| 2. | XG Roller+ | 5/3(2) 5/1 | eq: +1.970 (-0.001) |
| Player: Opponent: | 100.00% (G:96.97% B:0.00%) 0.00% (G:0.00% B:0.00%) | |
|
| 3. | XG Roller+ | 5/3 2/0ff(3) | eq: +1.901 (-0.070) |
| Player: Opponent: | 97.56% (G:93.64% B:0.24%) 2.44% (G:0.00% B:0.00%) | |
|
| 4. | 3 ply | 5/1 2/0ff(2) | eq: +1.901 (-0.070) |
| Player: Opponent: | 97.78% (G:93.28% B:0.11%) 2.22% (G:0.00% B:0.00%) | |
|
| 5. | 3 ply | 5/1 3/1 2/0ff | eq: +1.886 (-0.085) |
| Player: Opponent: | 97.62% (G:92.05% B:0.11%) 2.38% (G:0.00% B:0.00%) | |
|
eXtreme Gammon Version: 1.21