It won't hurt a thing! Run it and forget it. Geeez..Lets say he went smaller, runs it two three years and does a fresh up--little hone, new rings and oh my! I am at .007 now--big deal I would send that fresh up job out in the world knowing it would run even better than before---Too much tech thinking , not enough rubber burning around here. Drive the snot out of any Mopar you have--Thats what they were made for and life is short--drive more type less