Semi

I do have somewhat of a problem with that, and maybe it is all in my mind. But it is my feeling that if a plug is loose - it has movement - maybe not much but it has movement. I think anything that is suppose to hold pressure should be snug to tight. Anything that is allowed to work back and forth will work and any time sumoething can work it is subject to failure either from metal fatigue or pressure constantly pounding the plug back against the threads....

Guess I am old and haver just been around machinery and mechanics to long... Probably nothing wrong with what you are suggesting - I just could not do it.