Final note: To compare apples to apples, Mizuno saw 108 MJ of gain over 30 days at COP of 1.8 so the net energy was about 240 MJ, or about 8 per day, on average.
For Roulette, the 294 MJ is net energy over 152 days at COP of 1.5, or about 2 MJ per day. Therefore, the Mizuno experiment is about 4 times more robust on an average day. I will correct prior estimate of this being 500% better (than the best prior result), down to 400%. From: Jed Rothwell As far as I know, the record for Pd-D is 294 MJ, Roulette et al.: http://lenr-canr.org/acrobat/RouletteTresultsofi.pdf

