Hi Gilou06.
Yes on the odd occasion bits that are in HD have been changed to the uncut footage.
This is either due to an alternate take being used or the uncut footage of the same shot ran longer.
When I made the Blu Ray edition I cut at frame cuts.
Since I’m using the same audio’s from that edition I’m matching the timing to them.
However to try and keep even more HD content this time around I’ve been adding blends into the same cut.