Terry emailed me and made a pretty cool and inexpensive suggestion. You can take a regular large diameter copper electrode plug and gap to .035. The ground electrode (the arm) is then filed down to half the width of the main electrode. You also file the sides of the ground electrode square. Terry has a ton of eperience with this type of thing, so I may be doing just as he suggests. The entire plug set will cost about $6.00. A bit better than the $100 that the Irridums would cost. If it would be better I'd do it, but it sounds like this may be a better avenue.
