Your comment is right on and very important. NO METHOD CAN PRODUCE LENR WITH RELIABILITY. That fact needs to be accepted. We can say only that some methods work more often than others.
That statement is only true, if one rejects the production of what was call magnegas as not resulting from the same mechanism behind LENR. But the truth maybe that a commercial company has been making millions of dollars per year by the application of LENR. I haven't seen a better explanation than that the extreme magnetic fields that cause magnetic bond in magnegas are a result of nuclear excitation.