well guys i figured there is no better time than the present. it might be a little be premature for the tree but with the plans i have i dont have to much that can go wrong. if i get some reverse taper then well i will have to graft a sacrifice branch down low on the trunk to help rectify it.
but i am hoping that wont have to happen.
now for some details of what i have done is-
1. i wanted to keep an apex on this tree and the branch coming up from it wasnt in the right position so it either had to be removed, replaced and grafted, or fused.
i figured the best go was to fuse to start with, if it doesnt take i can remove it and create a shari, then will have to go with a graft, but i think the process should go well.
with the fuse the problems down the track could result in reverse taper- how to fix this will be to probly plug graft(thread graft i think is the proper term, where you drill a small hole then plug a branh into it and seal with a graft wax) a branch down lower on the trunk to help thicken it again, because now with the fuse it will thicken the trunk where the fuse is. but i am thinking and hoping it will still have the same result pushing energy to the trunk and branch for the apex.
2. i had to make some incisions, i cut a groove out of the trunk where i wanted the branch to sit into, through the soft out core of the trunk(the white fibrous tissue) to the harder wood underneath. this had to be neat, as it had to be a nice clean fit for the cambium layer to make good contact.
the second problem was the branch itself although quite maluable didnt want to bend properly all the way in, so i had to take nearly half the thickness of the branch trunk out, more at the base to get the bend, (like cutting wedges to get a bend in a thicker branch).
i was very precise with this as to make sure the cambium layer matched up nicely.. sucess, got it perfect.
3. figuring out how to hold it down in position long enough to take and fuse. the answer zip ties. i know people like to use stainless or brass screws, this was not an option, the branch is a bit thin for this and would split. the good thing about zip ties is it forces you to check the tree constantly to make sure the ties arent biting in to the tree, if it looks to tight then replace a couple of ties and remove the others with snub nose wire cutters used for cutting wire close to the branches, works a treat.
working from the end closest to the base zip tieing to where the cut finished i used three all up. it wasnt a great move but it was necessary none the less.
a home made cut paste(plastecine and oil) was used to seal the area off. just for safety reasons obviously.
4. now it is a matter of time and patience, i need to keep this tree well fed to promote new growth. watch the ties to make sure they dont cut in as stated previously.
pictures are of the cut area and where the branch ended up on the tree to create the new apex. this should help in the long term of the overall look of the tree.
i will have to keep building the apex over the years, this and keeping the tail strong is going to be the hardest part of the progress.
any comments are always welcome as i do need advice on this as it is probly the first major sort of surgery i have done to a tree. but i felt really confident in doing it and feel i have done it well.
also as you can see i turned the tail in the other way, i did like the look of that aaron!
this is a long term project that will be updated as things happen
lol
can't wait to see how you go about this one 
of detail