Well thanks for the vote of confidence 429AL, but I may very well be wrong. If I am wrong, though, then there is no reason not to use platinum spark plugs.
The topic of this discussion, btw, is not "What spark plugs should I use?" or "What gap should I use?". It was a question concerning the legitimacy of specialty plugs like Splitfires (who I believe are being sued for making unsubstantiated claims about their products) and Bosch +4s ( Interesting thing about these is that they reorient the spark so that it is nearly perpendicuar to the motion of the piston and not nearly parallel like regular plugs. Bosch doesn't claim that all 4 electrodes get spark at once, but you sure could get that impression ).
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351W 89 Mustang GT Convertible