To all tips I would add it depends also on the handlebar height. If your position on the bike is to be more upright (handlebar positioned around the same height as the saddle or higher) I your rather tilt the saddle nose up a bit. If we are talking about more of a racer's position (handlebar lower than saddle) then having it level with the ground or tilted nose down could be more comfortable.
It also depends on riding style. If you are going to ride in and out of saddle very frequently (like in cyclocross) then setting it lower and tilted nose down would make much sense.
this has always eluded me as to how a saddle should be set up properly so its comfy.
how far forward or back on the post should it be, what angle, where abouts should your arse actually sit on the thing??
Ive just got a brooks saddle so want to make sure i break it in in the right position so any help would be greatly appreciated