Hello, Imperator

The attribute I´ve found messes up my models most is the Offset value. This one should be the one you should be paying attention to. Try really low values first and work them up from it. Also be on the lookout for non-manifold geometry since it won´t bevel.

• Try really low values for the bevel´s offset value (in the order of 0,0002 and such) -works pretty great for me-
• Roundness value depends on personal preferences.
• Segments also depends on personal preferences (although one or two faces are normally enough)

Hope this little bit helps...