I was reading my DW owner's manual last night. The break-in procedure calls for shooting 300-500 rounds of "ball" ammunition with cleaning and lubrication after shooting 50 rounds. DW rates their 1911s as capable of handling +P ammo. Also for "best results", DW recommends using "ball" ammo and this comment was not in the "break-in" section of the manual. The use of reloaded ammo, commercial or individual, voids the warranty. They recommend the use of factory loaded "new" ammo that meets SAAMI standards.
They recommend a high quality gun oil such as FP-10, Militec-1, or Mil-Comm TW25B grease.