There is a difference on how both programs use OOS.

FSB Pro cut out the OOS part and calculates only on the base data. It pushes to the collection all profitable until the OOS separator strategies. We cannot see the OOS part of the backtest because it doesn't exist. We can see it when we send a strategy on the Editor or if we use the Multi Tester to recalculate the complete collection.

EA Studio calculates against the full data series. However, it shows on the Generator screen the most profitable strategy at the OOS separator. Because the fact EA Studio uses the complete data series, it is able to display the green OOS zone.
Up to here there is no difference between the programs. However, EA Studio applies a very cheap trick. Because it sees the final balance (you remember that it uses the complete data series), it sends to the collection only strategies that have Net Balance not lower than 70% of the currently shown strategy.

This trick have on positive and one negative effect:
- pros: the collections not cluttered with bad strategies.
- cons: if the Generator discovers a strategy with a huge profit shortly after the run, it will be difficult to find other strategies with profit within the 70% margin and will not push to the Collection. The solution is to Stop and Start it from time to time.