Ok so I had this guy for a while now with this done but thought that people could care to see how the arm would look with a ratchet joint and not a Ball joint(not a jab at F_r) as from the get go I wanted a ratchet arm because I thought it would be a better suited joint for such a large arm and I am sure it will be even heavier once painted up. Sliced the arm off right where the axe hinge is and the part looks over lapped. Took the first screw out of the arm and glued it together and drilled out a hole big enough for the Ratchet joint hole plug to fit in(Many thanks to Ptitvite for spilling the beans on these great connector pieces, so durable and easy to work with.). The bottom portion of the arm is kinda difficult as where you have to drill out the spot is where the mechanics are for the cannon noise button which is activated by the same piece that shoots the weapon. So when cutting make sure to stay high and not totally disconnect the pice thats in there and when you glue, make sure you fix it to the top portion of the arm as well and not to gunky as you could end up locking the firing mechanism as well. I did shave off quite a bit of excess plastic so the joint has better range of motion but I think I need a little more still and I will be doing some major cleanup so ignore all the extra glue. lol Thanks for reading and hope this is of any help.