Hi, brand new on here first post. I have a couple of friends that have Springfield V12s I'm wanting to do that porting on my PT1911. Can it be done with a standard barrel? If I need to go bull barrel how hard is it to convert to a bull barrel I have a Bridgeport and lathe and even a surface grinder at my disposal and 15 years in the machining trade. Just now getting into gunsmithing. Tips or suggestions please!!