Not sure what you mean by an oxymoron, which is a contradiction in the same statement. "It turned up missing" is an example because when something "turns up, it is no longer missing." I don't think I listed any oxymorons in anything I stated? But if you're stating that I contradicted myself, I am not. I am simply saying that coil denitration IS a viable option, but you should definitely try other avenues first. It's not really reinventing the wheel, to use your analogy because sometimes you don't need just a wheel; but an axle, and the bolts to hold the wheel to the axle, and a new drive shaft, but none of that got anything moving so you try a tracked vehicle which may work better when you're stuck in mud.