#1
ugh you know the locks on the guitars i first saw it on some ibanez guitars.. what is the advantage and d disadvantage of those lock things?..
My gear:

Ibanez RGR320EX
BOSS DS1 MODDED
BEHRINGER DD100
CHORUS
EQ

LINE 6 SPIDER III 75 WATTS
#2
well ;your guitar downst hardly go out of tune but its a pain in the ass to detune or tune back up
#3
these locks are essential for ANY guitar with a tremolo system.. by locking down at the nut, it removes the possibility of the strings losing slack at the tuning pegs and going out of tune when you do any amount of wankwork on your bridge :P
Grammar and spelling omitted as an exercise for the reader.