[phenixbb] Q. Phase extension

Hi, I have a 3.5 angstrom Os SAD phased map from AutoSol that looks real good (~50% fitted as poly ALA) and a 1.5 Angstrom set of native data. I would like to try phase extension in steps to see if the map improves enough for AutoBuild to fit the sequence. What AutoSol files/flags do I need for AutoBuild in addition to the high res data to get the best results. Thanks, John