After several frustrating hours , I managed to remove both broken exhaust studs on the left side exhaust port...one via drill and tap (super careful use of a center punch required)...the other via the welder and nut method. My question now is should I use copper flake anti-seize or some type of threadlocker on the new studs? I'd think that the anti-seize would be better for future removal, but I don't want them to loosen and fall out on our pending trip to the Hatfield and McCoy trails. Any suggestions? Thanks in advance!