the joys of the EZ locking wilkinson is they are a pig to restring, the need for pliers to keep it neat with them is awful.i came across these on an esp i worked on around a year or so and that was a head scratcher to restring. i have both Locking and non locking tuners on my gig guitars and to be honest im more a fan of non locking a good technique is the key to it thats all you need.