Me and @MI55ION did tell you that weeks agoJust to close off on this, I now have a D108 of my own sat under my desk and have cancelled the order for the KC62.
I added a Dspeaker Sii anti mode too and that made things even better. Like the difference between the 3000 micro and D108 again!
very happy with the setup now.
so after 4 pages and much time, the answer to the question of BK Gemini II or REL T5 is... JL Audio D108!
Glad you are happy and sorted.