public bool DoubleCrossBelow(int lookback = 5, decimal tolerance = 0.7m / 10000m) => _fast.DoubleCrossBelow(_medium, _slow, lookback, tolerance);
public bool DoubleCrossBelow(int lookback = 5, decimal tolerance = 0.7m / 10000m) => _fast.DoubleCrossBelow(_medium, _slow, lookback, tolerance);