Just spoke to DH, he had some colourful language about Dr Odent's views and what he can do with his head and his backside. Also used a word starting with T that rhymes with "what".
He was with me for the birth of DS and in no way did it turn him off me, seeing DS' come out - it was so special and he's so glad he could be there for that special moment. However, he did find it useful to hear his adrenaline levels could interfere with my ability to relax.
As for my POV, I really appreciated DH's support but I did find I was worried about how we was coping with being tired, etc, so this time will probably have a friend as a second support person so he can take time to have a break when he needs it.