I found that this idea has been working well for me so far . And its a good way to trade for me as I've seen so far.
But of course you dont want to lose some chance when your SL has been hit due to minor tick of the market then go up again. It happened to me so many times, I save my position above my entry price and seeing it was hit for a little drop closing my position then gaining again. Thats one thing youve missed maybe a little additional risk is necessary stay on the leverage.
But for some rush hour( market drop and surge fast) you cant aniticipate this and will have no chance to set up a good SL either cut loss or chasing zero losses.