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Rather than entering a full position at once, some traders split entries: half at the first signal and half on confirmation or a pullback. The aim is to reduce the impact of poor timing.

A worked example: a planned 1 percent risk is split into two 0.5 percent parts. If the trade moves immediately in favour, only half is filled, reducing profit. If it pulls back first, the second part is filled at a better price, improving the average entry.

Whether this helps depends on the strategy. For breakout systems that rely on momentum, waiting for a pullback may mean missing the best trades. For range or reversal systems, scaling in may improve average entries.

A test should compare both approaches on the same signals, including the trades where the second part never fills.

It is important that the total risk does not exceed the plan, which means the stop has to be calculated on the combined position.

Do you scale into trades, and has it helped?

I scale in on my range fades and not on anything else, and the split you describe is roughly what I use. The first half goes on when price reaches the zone, and the second sits as a limit order two or three pips deeper, with one stop for the whole position placed so that both halves together risk my normal amount.

When I compared it against single entries over about five months, the average entry improved by a little over a pip, but the bigger effect was emotional. If price pushed through the first entry I didn't feel the urge to bail, because that was part of the plan. The cost showed up on the trades that turned straight from the zone, where I only had half on and the winner was half the size.

I tried the same thing on breakouts and dropped it after a month. The good breakouts rarely gave me the pullback, so the second half was filled mostly on the trades that were already failing, which is the opposite of what you want.