[ I’m sure people smarter than I am have looked into fabrication and control options - I was just offering my knee jerk reaction. ]
Same here.
The difficult part is getting the reaction to work in the first place. It is a very tricky effect.
I think that’s why Rossi has made so much progress compared to others because he got the reaction to initiate much more reliably than anyone else. So he’s had much more tinker-time than any other researcher.
His cryptic announcements over the last 3 years have not given much of a glimpse of help to understand his approach to control of the reaction. The latest inklings seem to be that he’s using heat to control it.