Thanks for the tips guys, I'm going to grab a 80W iron with a fat chisel tip then, at least I know its possible haha. I wished Hobbywing didn't pre-solder wires on esc's like the stock spec with stuff that the average iron cannot remove.
Interested in picking up a 21.5t V10 G2 at some stage, I have a V10 21.5t and V10 5.5t at the moment and I'm impressed with them