Very interesting.
On this respect, I'd take the occasion to ask you some questions. Did you use the same power control strategy used by F&P? Did you use a galvanostat whose voltage was set at a certain rail value? Do you remember which was the cell voltage after disconnecting the wires: the maximum rail value, a null value, or a residual intermediate value as in Fig.6B (1)?
Did you publish these results somewhere? Are they available on internet?
Happy to answer with the preface that all (only 3 or 4) incidents of HAD that I saw were with cells that remained full of electrolyte (all closed cells - some with external recombiner) so my experience has little direct relevance to the F&P cases.
1) Our power supplies and strategy were a little different. We mostly used Kepco BOP power supplies in (slow) galvanostatic mode. But an (hypothetical) open circuit with a demand current > 0 would have driven the supply to the rail (typically 20V). As noted above these supplies were disconnected and various other strategies employed to check the reality of our I=0 and ∂T>0 assertions.
2) I spoke about HAD (I called it heat after life) at ICCF4 ... not knowing that Martin was going to speak about it too. I wasn't really interested as the situation is uncontrolled. It is a good way to refute some calorimetric concerns in those not very experienced (hard to make an input power-measurement error if I*V=0).
3) I do remember writing up one case in nauseating detail where the effect was small but certain. This was for DARPA so I doubt it is on the internet. My non-Google search of "Energetics/SRI replication" says it is mentioned in here http://lenr-canr.org/acrobat/McKubreMCHcoldfusiona.pdf - I did not see it on casual glance but the experimental set certainly is.
4) The open cell potential is only a few hundred mV. This maintains for a surprisingly long time. Spontaneous deloading is slow for used cathodes. But this does not explain your "residual intermediate value". To understand this we would need to know I, and thus R, hence my inquiry. You might think about calculating the effect of a putative residual salt bridge (non-infinite impedance) between anode and cathode wires somewhere in the head of the calorimeter where the wires leave, but,
5) I admire your zeal but do not see much to be gained from this line of inquiry. The HAD phenomenon is mysterious - but it is real. Fleischmann was not incompetent - until the final stages of Parkinson's. The only person who can help with direct personal information is Stan Pons - who might respond to a respectful, scientific inquiry.