Definitely a great idea! Not yours, but a great idea non the less! I'm down for a set. Would like to see how these fit compared to the ones from 22RE performance. Was shocked at how crazy tight his tolerances were. Without giving away more than I should, the set from Jim & Jerry actually comes with 3 pieces for best possible fit. How have you compensated for the various thicknesses in head castings? The head on my red truck was actually thicker than all the various heads they checked before the prototypes were produced. Had to open the groove up to 0.430 for an extremely tight fit on the rear of the head, front was not even close to that thick and fit just fine, no leaks so far!