A very delicate anatomical structure, the nail matrix is easily injured, damaged, and scarred. Any injury or trauma to tills matrix can show up as a visible change in the nail plate or affect how it grows out.
If just a few clients have lifting, look to their lifestyles for the solution. If the numbers are higher, however, the cause probably can be traced back to your technique.
Because your clients differ your services should, too. Some clients need to get in and out of the salon quickly; others want the total salon indulgence. Make everybody happy by offering several types of manicures.