Which is the best strategy to assess the quality of a model and sort them out of a bunch of many calculated models? I have models a complex of two proteins plus a metal ion. Many Thanks edo -- Dr Edoardo Saccenti CERM Magnetic Resonance Center University of Florence Fiorgen Foundation Via Luigi Sacconi n° 6 50019 Sesto Fiorentino (FI) Italy Tel: +39 055 4574281