Document MultiSignal EA v1.13 dynamic lot sizing

SESSION_SAVE_2026-03-22.md

@@ -443,3 +443,39 @@ The EA is now compiled and ready to use in MT5 with:
 - **$50,000+:** 0.05 lots - Aggressive
 
 **Overall Rating: 7/10** - Working well, needs lot optimization
+
+---
+
+## MultiSignal Confluence EA v1.13 - Dynamic Lot Sizing
+**Date:** March 25, 2026
+
+### New Features
+- **InpUseRiskPercent**: Enable risk-based dynamic lot sizing
+- **InpRiskPercent**: Set risk % per trade (1%, 2%, 5%, etc.)
+- **CalculateLotSize()**: Automatically calculates lots based on:
+  - Account balance
+  - Risk percentage  
+  - Stop loss distance
+  - Symbol tick value/size
+
+### Formula
+```
+Lot Size = Risk$ / (SL_Points × TickValue/TickSize)
+```
+
+### Recommended Settings
+
+| Account Size | Risk% | Expected Lot |
+|--------------|-------|--------------|
+| $10,000 | 1.0% | 0.01-0.02 |
+| $25,000 | 2.0% | 0.03-0.04 |
+| $50,000 | 3.0% | 0.08-0.10 |
+| $100,000+ | 5.0% | 0.20-0.30 |
+
+### Additional Optimizations
+- **Max Positions**: Can increase from 3 to 5 for more trades
+- **SL/TP**: 100/200 points maintains 1:2 risk/reward
+- **Confluence**: Keep at 2 signals minimum for quality
+
+### Commit
+2f8c24a - MultiSignal Confluence EA v1.13