Hahaha, yeah, a stubby cooler seems far more effective and useful.
You're right about the camera body's insulating effects. I guess they made it that way for the 'normal' user to protect all the innards.
My copper finger had a metal to metal connect courtsey of a rough drill bit deforming the hole edges but it was minimal at best. I hoped it would at least give a faster path for all them hot bits and maybe it did but insufficient to be of any use.
I'll continue to use my current setup as is till mod time comes. It works well enough for my imaging experiments and I love BYEos. It may tempt me one day to get a newer better Canon just for Astro.
Back to the drawing board for now
cheers
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