Think about and know, ahead of time, about plug clearance. I am SO tired of burning boots with straight plug heads.
Shorty plugs do not help.
Taylor "Space Age Plug Wraps" did nothing to alleviate the burning/arcing, despite their high cost.
I am now trying Bakelite, from a VW ($2 each, used), having looked, without avail, so far, for something that will not burn thru in very short order. I have seen, but not found for sale, the ceramic tipped plug wires from Taylor, but am leery of their stuff after the above. I was told that snowmobiles have a similar setup.
Neither wrapping my TPIS's nor 'dimpling' the tubes, as suggested by them, helped. The 'kick' of the long tubes diminishes quickly when the engine is running on only 6 or 7 cylinders.