I feel horizontal gear set only has its own problems. Such as the amount of storage space won't allow it. Rather than true horizontal, having best of both worlds would be better. I didn't really enjoy the gear progress with Heavensward though. I feel it is too much. And many of my friends were very disappointed because the hard earn gears they had had became obsolete when 3.0 came around. To me, this is very bad design. Furthermore, it makes content before the expansion pointless.