OK, so far the CD6SE & 8SE are both warming up. They have lost their harshness but still retained the amazingly controlled and solid bass. They more control then my A3.2CD, that's for sure, but that does not make them more musical. At the moment I cannot hear much between the 6SE & the 8SE, but I suspect that they are too 'cold' still and that my speakers are the limiting factor. The 8SE is just a touch warmer and fuller (which i prefer).
They both have incredible detail and control, but at the moment I am finding them just slightly tiring compared to my A3.2. I certainly do not envy the WHF team as I am getting a headache from trying to hear the differences.
They have not 'grabbed' me in the way that upgrading from my Marantz CD63 to the MF A3.2 did, so at present I am not usre that I could justify spending £800 - £1100 to achieve a different sound.
I must repeat though that I think they need far more running in and as such I may reserve judgement, return them to the kind folks at Sevenoaks in Plymouth, and review them again a few months, when I know they have been fully warmed up.
BTW I have given up the on 8VS2 amp as it is just too harsh, so all these tests have been done using my MF 3.2 amp.
I hope that helps a bit, and if I had never bought the MF3.2 I would DEFINITELY buy the CD6SE or maybe even the CD8SE as they are both brilliant - just different to my MF A3.2 set up.