Inconsistent Strategy Tester Model?

[[Deleted]]

1) When testing a strategy, what should the Model be? Is is "Every tick" or "Control points" or "Open prices"?

2) I tested a strategy and it's profitable when using "Control points", but it's a lost when using "Every tick". How come?
What does this means? How can a strategy profitable with one Model but lost with another model?

Thanks.

[Slava]

'Strategy Tester: Modes of Modeling during Testing'