The vet came back this afternoon to cut off the flaps.
(I won't say what happened to the flaps - which were the size and thickness of a good steak and a smaller scotch fillet- and blood)
They were a good inch thick, which has now left a 'door step' down to the wound area. It is hard to envisage it ever getting flatter. I think it eventually will even up a little, but he will definitely be left with an area with a bit of a step down.
I didnt take photos as we were more concerned with trying to stem the flow of blood: LOTS of little bleeders, all spurting!
Unfortunately at 6.30 pm (over four hours later) it was still bleeding, and so there were lovely big chunks of red jelly hanging from his leg as the blood congealed....NICE!
Not sure if I should be worried or not, but I guess he shouldnt bleed to death overnight??
If it is not still spurting in the morning, I will leave the dressings as they are until evening, at which stage I will then change them and take photos.
I did ask the vet if it would be ok to ride him (obviously only at walk to start), and she thought it would be a good idea, and to also leave it open while I ride to allow the air to get at it. Not sure how I feel about riding him with a large wound in sight, although I may not be able to see it clearly from on top anyway - although I am sure I will see the door step!