OK, how about I just break the iridium plug loose 1/2 turn and re-snug 1/2 turn every time I do the valves (@ Q-1000 miles), using no anti-sieze paste? That way it isn't planted in there too long.
Why not remove it, you say ? Always concerned about cross threading this finely threaded little plug even with fingers when I run it back in.
I'll probably replace the iridium plug every winter. $7 isn't an issue, once a year.