so my feeler gauge reads inches at the top making me think .08 and .18 is the mm which it isnt. however, the mm reading below it reads like .356 for example. i dont the exact .08 reading. so when adjusting the valves the correct feeler gauge to use for me feels so thin its like paper. Am I going crazy or did i just realize ive been going way to loose and my gauge just doesn't give perfect mm readings?