Gibson Les Paul guitar is notorious for its various and constant issues. When I hear all these great musicians dealing with this guitar perfectly I always think they should be happy because they always have a guitar tech around to deal with this guitar. When I had a Les Paul, it was a nightmare. Tuning instability, always lubricating the nut and the saddle, harder restringing procedures, the guitar itself is unbalanced and heavy. I mean Les Paul guitar is like a giant mansion or a really beautiful woman — cool to have, but you have to deal with unexpected problems and also, for a house analogy, owe a multimillion property tax to the government lol.
I think you may have a point here. But my fake Les Paul stays in tune perfectly, but is still quite heavy. Lovin' the tone though.
Honestly, your fake Les Paul may be of better quality than the real deal 
Gibson does it better nowadays, but in the time I owned a Les Paul, the company went absolutely nuts. The quality was bad beyond belief, you could buy a Custom Shop true historic whatever Les Paul and still needed a re-check of everything, redoing electronics and such. The quality was incoisistent, there were snags in the wood, bad paintjob, questionable materials, questionable electronics. I'll think 1000 times the next time I'll want a Gibson Les Paul
I know that because I know a good guitar tech in Moscow and he goes through thousands of guitars every year, doing fretjobs and whatnot. And in his social network feed is an unbeliveable amount of Gibsons with an aubeliveable amount of ridiculous fails in all the price range.
in my understanding, guitars NEVER stays in tune.
Our ears are "trained" to hear the instrument in tune.
Andy Timmons himself calls the tuner as 'the lier'
There some tools to help the guitar to tune, like Buzz Feiten System, Earvana Nuts or the True Temperament frets. The most strange is that almost all guitar players escapes from this tools because perfect tuned chords sounds terrible to his ears.
The reason why we guitarrists tends to use some sus chords or some chord inversions its because of the problems with the tuning from the guitar. Especially in the B and G strings.
Talking about Gibson Style Guitars tunning issues, the primary issue is that the neck is prepared to receive the wound G string. The plain G is softer and, because it is almost in the middle of the neck, cause more vibration and tends to be out of tune. High tension strings helps in the tunning stability.
My Les Paul never get his nut lubricated and "stays" in tune just fine.
My trick is to tune perfect 4th chords at the 3rd fret. The octave tuning needs to be a bit flat at the 15th fret.
And thts it. "Perfect" tune
