""When I did use the washers I didn't remove the factory washer first, It don't matter which way you use the copper washer, it'll seal either way.""

I found five kits online. I can see your point on a copper indexing washer, but Moroso leads me to believe that maybe some of the kits are not using a soft material for the indexing washers.

EDIT FROM MOROSO:
""If you have a tapered seat plug then you need to put the crush washer on
last so that it seats and seals correctly in the head. If it is a flat seat
application then the order in which the washers go on is not as important.""

Thanks for the replies.