I would run a couple hundred before parking or finishing...Check to see if will run good with a truon protecter...That way after you park or finish it you can avoid finish wear on the truon...I ran about 800rd's before I completed mine...Just after 250rd's I broke a barrel extention..I replaced it and ran the rest of the 800rd's...After all the parts got settled in, and I was sure it was trouble free...I gave it a dark black park....Plus , in that brake in period I did not have to worry about cleaning real good....just make sure you scrub the barrel and wipe down the rest.