Thank you for your posting! Noise is the market activity created by market participants. Placement of a stop within the noise will lead to a higher percentage chance of that stop being taken out. Placement of a stop outside the noise will lead to a lower percentage chance of that stop being taken out. When a stop placement is determined, one can then calculate the size of the position for that particular trade. One should always have full position on when entering---The amount of that full position is determined by calculating that you would not lose more than 2% of Total Liquid Net Worth if the stop is taken out. This is the most important part of trading. Prudent money management.
Which is easy when one trades only in hindsight.