I've been having this problem where I am having a hard time sliding smoothly, like my fingers kinda get "stuck" on the frets. Its as if my fingers or the fretboard is really dry. It makes for really choppy sounding slides when i play so you can see how this is annoying me. How can I fix this? Im guessing someone will say lemon oil, but I thought that you were only supposed to use it very rarely, and because of this, wouldn't it just wear off quickly and become of no use? I noticed when Petrucci plays live, his fretboard appears to be covered in something, but i can only assume doing this a lot would damage the wood. Hmm...