I run a microtech, MSD DIS 4 ignition pack with ford coils on 22psi.
I was runing irridiums bkr5es-11 somthing like that, and after a while it started missing on high boost.
My tuner closed the the gap to 0.8 and said i should change the heat range to a 6 or a 7 also my map sensor could not handle the 22psi. So he reduced the boost to 19psi, all runs good now.
Im now using BCPR6ES run fine.
3lit32 i know you are just trying to give some good advice to peolpe, but if they dont want to listen thats there problem.