Whenever managing multiple positions, we always use physical stops, usually even with just one position. Not only do physical stops take the emotion out of making the decision to cut the loss, you can also trail the stops to lock in profits in the event of sudden reversal with your positions.
Of course you will occasionally get your stop taken out by a few cents before the stock reverses, but it only takes one time of missing cutting the loss to make up for 20 times of getting juked out by a specialist.
I swear by physical stops and my profitability has increased dramatically since I began using them.