I just ran the numbers for my example:
1. game Risk 140 Odds -140 Profit -140
2. game Risk 180 Odds -150 Profit -180
3. game Risk 200 Odds -160 Profit 126
4. game Risk 180 Odds -150 Profit 120
5. game Risk 185 Odds -150 Profit 125
Total profit $51
Using ** the profit would have been $300, but the Risks would also have been larger and if the 3. game was lost it would have costed a lot more.