I know some of you will use this method but I thought I would mention it for the benefit of those that don't.
I had a friend from Kingussie out for Sika stags a few years ago who'd gillie'd on the hill when on holiday from university, and on seeing me remove the rectum in one piece whilst still attached to the peezel he said he had never seen that done on a stag before. In my experience it is easier on stags than Roe Bucks.
With the deer lying on it's back start by gripping the peezel and lifting so that you can start cutting below it and in turn the testicles, back towards the haunches. Once the skin has been cut and lifted you will see the peezel running all the way back towards the pelvic area. Once you have pared it back by cutting along both sides towards the anus, leave it alone and continue with the gralloch as normal. Once the intestine is cut off and tied internally and the stomach etc removed, return to the peezel and continue cutting very carefully whilst gently pulling the peezel back between the haunches and down towards the anus. I should have mentioned that a very sharp and narrow bladed knife is a must. You will see all the small tissue membranes that hold the peezel in place below the skin begin to part as you continue cutting towards the anus. It is difficult to describe without photos and next year during the season if anyone is interested I will post some on here. Once the anus has been reached continue separating the tissue from around this area. With gentle pulling straight away from the rear end of the beast, the rectum and what is left of the knotted off intestine will begin to pull through the pelvis, with hopefully the bladder un-burst following as well.
Once practised although a wee bit time-consuming, IMO there is no neater way to excavate this area of the beast although I admit if in a rush with several dear to dress I often don't bother. You will no doubt tear through a few before getting it right as I did when shown this method but if this happens resort to removal as normal. When seen performed for the first time by someone who is well versed in this method it looks very professional.
I'm interested to hear if anyone else does this or has seen it performed before.