Two of my modded sensors I had high hopes for, carefully polished surface , gold wires protected with epoxy in advance of the mod, and each carefully encapsulated in tape and earthed on a anti-static mat prior to the mod. Neither is giving me anything, no images from either. I have mod fatique at this point, everything I try seems to make the problem worse.
I am going to give up on making a reliable mono DSLR and cut my losses on this project. I know I have one good spare body and as soon as my next replacement sensor arrives I will install it to make one good standard colour 450D - and leave it at that.
Over the past week's imaging, especially on the NGC5128 Supernova, I am again amazed at the performance of my cooled colour 450D - which allowed me to see the orange colour of the Supernova. I think I need to be satisfied with that camera and not 'focus' on the mono version any longer. Narrowband is probably not as important to me, living in a reasonable dark location, as it would be to a city person; and no real value at places like the Dark Site.
So consider this project closed. I have a set of three Baader narrowband 36mm unmounted filters, and a EOS filter drawer, which I will probably sell in the next month or so to recover some of the money I put into this project. Anyone interested in the filters or drawer let me know.
Now back to spending my nights imaging in glorious colour.