| If you are... | Choose... | Why? | | :--- | :--- | :--- | | (FTMO, MFF) | VSO | You need to export to MT5 quickly. Prop firms care about drawdown, not complex statistics. Visual curves are fine. | | A systematic hedge fund | FPState | You need audit trails, WFA, and survivorship bias checks. You cannot use VSO for a $10M book. | | Learning to code strategies | VSO | You will learn faster by dragging parameters than by reading Pandas errors. | | Building a high-frequency strategy | FPState | VSO cannot handle the tick granularity or nanosecond timestamps effectively. | | A swing trader (daily bars) | Either | Tie. Use FPState if you want stats; use VSO if you want speed. |

When your CPU switches between different tasks (context switching), it has to save the "state" of these floating-point calculations so it can resume them later without errors. FPState refers to this saved data. 🕹️ The "FPState VSO Best" Myth