Robin, > Not necessary. He has completely missed the possibility of enhanced electron capture as an alternative to beta+ decay.
Yes. In fact, speaking of EC - in a way it is too bad that Rossi did not find cobalt instead of copper as the main transmutation product. There are a number of reasons that cobalt would be easier to explain, including low radiation and the resultant ash which does not seems to emit at all. Copper is not as good a fit.
