トレードへの段階的投入とポジションサイジング

For scaling, I often work backward from my full intended position size and then determine my initial entry as a fraction of that, based on where my first stop loss would be. This allows me to define risk for the total trade even before the full position is built.

That's a great question, and it really comes down to pre-defining your 'full' position size and then working backward. For me, the initial size is usually 1/3 or 1/4 of my intended maximum, sized so that if it goes straight to the second downside level, I haven't exceeded my risk tolerance for the entire trade idea.

That's a great question, and it really depends on your conviction level and the specific support/resistance zones. For me, if I'm planning to scale, I'll typically start with a smaller initial size than my 'full' position, maybe 25-30% of my intended total, and then use those subsequent support levels as potential add-on points with defined stop-loss for each entry.