hi all,
i finally setup my guitar... actually, there was a lot of problems with it and i was really afraid that i was never gonna have a playable guitar.
problems:
high action
bends on the 12th fret (on all strings) were muted: the 12th fret was... wrong. Irregular, it kind of sticked out and muted the strings. Only the 12th fret. Scary.
1. I brought it to the only guitar shop of the area: the guy looked at it with surprise, saying "I've never seen that in my life, i'll send it to a luthier". Hell, that's not the kind of things you want to hear if you want to keep hope...
2. 2 weeks later, the guy calls me back "your guitar is back from the luthier, it's ready"... wow... that's surprising. I try the guitar out: action is still extremely high, but the 12th fret is not a problem anymore. Ok, I happily pay 50 euros because at least now the guitar can be played... more or less. I suppose the luthier has sanded the 12th fret.
Bad news: action is still high.
Even worse: intonation is pretty fjooked up !!
Very bad news: something is wrong with the bridge (one of the 2 screws that go into the body is "dead", its thread is gone, it will have to be changed one day...) the luthier had threaded it back temporary with some silicon stuff.
After few minutes, the 50 euros felt like a total rip off.
3. Back home, I just check out all websites about setting up guitars. I just can't give up on her, I'm sure it can be setup fine, with low action and perfect intonation..
Clean and feed the fretboard : it's as dried as my grandma's ... hum. you get the point.
I put new strings... the luthier didn't even change the old strings...
Trussrod: over the 3 next days, I screw, screw and screw again. The truss-rod was so loose, i'm lucky the neck was still within earth gravity. I had to screw about 10 full rotations. I mean... 10 times 360 degrees. Would you believe it ? I tell you, after 2 full turns, I was sweating very badly. Normally, you screw 1/2 of a turn max, perhaps 1 turn, before reaching the perfect neck bend. So 10 times... It *was* loose. And now it's heaven

Then intonation... mmm.. i'm still not very happy about it, but it'll get better. I'm afraid the bridge is a bit shaky because of this "unthreaded" screw, so it messes things up.
Anyway, now the guitar is almost perfect. Still some adjustments to do, to be frank, but already I'm so happy to have this guitar... I play it over and over. The P-90 sound is really exciting.
What a great experience it was, at least i now feel confident about setting up any guitar...