With any floating bridge, when you change strings, or install it, you want to check the intonation on the two outside E strings. That's what will determine the angle, regardless of the make/style of bridge. Check at the 12th fret that both the harmonic and fretted note are the same with a tuner. If the fretted note is sharp, angle that side towards the nut, away from the bridge. If its flat, go the other way. It will be a back and forth between the two strings until they are both intonated. Then, when you next change strings, use a little painters tape to mark the position (or change one string at a time so the bridge doesn't move.)