In the past I have been able to determine the potential trend moves using fibonacci clusters on medium to long-term charts. However, I seem to be struggling to identify the correct points where corrections usually tend to end with fibonacci clusters. In terms of corrections the fibonacci expansion tool which has been particularly useful in trends does not seem to provide much help with the 1.0 and 1.618 levels when combined with the retracement tool to create clusters of potential support or resistance zones. Could someone please suggest what a good way to identify strong support and resistance levels in a correction would be. I also tend to use volume for confirmation but would need to identify solid end of correction zones first I believe.