Im just toying with the idea of replacing the rotomatics on my les paul with a set of locking tuners. Ive no idea about which tuners I can replace the grovers with, with the least amount of hassle or drilling holes. Ive read that the grover 106 locking type are a bit fussy to use and can be a pain in the ass. Are there any quality drop in tuners that dont require any sizing work or hole drilling and work just great ? Your advice is most welcome and if you have any pics of the tuners installed, id love to view them.