hi......as far as angle goes....on the side of your tremolo.you will see the little slot where the knife edge was pressed in.........make that parallel with your guitar body...........
advice for setting one up......rule of thumb is to change one string at a time...
if you want to remove all your strings.....take a pack of strings are something similar and lay it under the back of the tremolo....this will keep it stable and it also keeps it at about the same angle as its supposed to be....
when puting all new strings........over tune your g d a and low e string....and tune your high e and b string to pitch......which in turn should knock the rest of the strings to close to the correct pitch.......along those lines....pretty easy........then lock your nut down and fine tune from there...
advice for setting one up......rule of thumb is to change one string at a time...
if you want to remove all your strings.....take a pack of strings are something similar and lay it under the back of the tremolo....this will keep it stable and it also keeps it at about the same angle as its supposed to be....
when puting all new strings........over tune your g d a and low e string....and tune your high e and b string to pitch......which in turn should knock the rest of the strings to close to the correct pitch.......along those lines....pretty easy........then lock your nut down and fine tune from there...