Originally Posted by: pogoheadthe d-tuna looks good but surely if you pressed the button to hold or release the string, the rest will just go out of tune like they normally do when you twiddle the screw :confused:

That is correct...read the rest of my previous post :cool:

Also, I saw someone mention to tighten the lock nut screws as tight as you can.....DON'T do this. Over tightening the lock nut can leed to problems such as stripped screws, and you can cause groove to be worn in the bottoms of the clamp peices, which would allow for string movement through the nut therefore defeating the purpose of the lock nut. Just make sure it is "snug", and do not overtighten.