Thankyou guy's. Now I will tell you a story. I come from Poland, and recently I was paricipating in free school of mixing and recording with famous polish mixing engineer. When it was over ,me and my friend, we went to ask him some questions. During the conversation he asked my friend what kind of strings he uses for recording. My friend plays guitar for 15 years, and I belive he does it very good. And uses 10-52. And what happened? Our mixing celebrity said that those are strings good for little girls and he started to lough. My frend said: why are you loughing if you don't know how I tune? For next ten minutes the guy was doing everithing to humiliate us. That's why I needed to ask you about that. Said story.
P.S. He said he uses 13-70 on his guitar tuning to 440 (he thougt we don't know it's A)