Hi, Mariner. I guess I'm the lone ranger here. I have 22 stocks and 22 sell stop orders in place, 1 for each.
I wouldn't call them "stop loss" though. Some of them are up 30%, 40%, 50%. Selling 8%-12% below current levels preserves gains and frees up capital.
"It is only a loss if you sell" is an illusion that should be held by income investors, in order to maintain the will to hold on. It's not true of course. It is a loss as soon as the price moves against you. Whether you realize the loss or not is another matter.