Ok. Well, lets just say my strings are broken in. I use heavy guage Boomers. I now can play hard a whole week, every day, and my strings will not go flat. Even with constant slap play, which is what ive been doing lately more and more, they refuse to go flat. After all that play, youd think (even me) that they would have had to at least gone flat a little. They dont go flat. They go sharp. A whole step sharp. It seems they dont stretch; they tighten with play and "abuse". help! Is it a ghost??