This is a long, and thorough study, but Kelly is very intelligent, for those who want to take the time.
Since almost two years i didn't download any actualisation from Kelly, the update from lenz law is interesting, it seems that he is writing with better understanding of the underlying principals now.
I personally think Mr Kelly misses the mark by a mile on many a devices in the past and would take his input with but a grain of salt. collect all info on the subject first then form your own opinion. it's like the Figuera device as i told him he was wrong as i then enlightened him a few years ago about the Inductor and part G.
there is no substitute for one's own research and bench work.