I want to put Grover locking tuners on my Les Paul Studio. Grover has two different kinds. Please let me know if you have any experience with either one of them and which one you would recommend me to get. I'm looking more from the reliability perspective, rather than aesthetics.
Roto-Grip with thumbscrew on the bottom:
or
Automatic-locking with a taller post:
Thanks!
Roto-Grip with thumbscrew on the bottom:

or
Automatic-locking with a taller post:

Thanks!