I used `Got2bglued` to hold the system on for my last cut-in....... it won`t hold right to the very edge as such but it`s easier than fiddling around peeling backing strips off tape with the stylist not too sure of `what`s what` and maybe a bit `wary`of helping out..... it`s easy to apply [simply smear it on by hand and spread evenly over the shaved area] and place your system down onto it--`sets`/bonds within a few minutes but you have time to re-position/move your system if it`s a bit `off`..... any `loose`bit of the perimeter can be held in place momentarily with a finger if the stylist needs you to during styling, but overall I found it very handy..... even if you don`t want/choose to use it at the cut-in stage, it`s something you might like to use or find very handy once you`re used to wearing... Paul.