What should I say... It's a stacking Tube, not more, not less :)
I think i like the tauren max more in non stacking mode but it's nice to have the option for an affordable price. I got 3 of them and the colors are not 100% matching. Maybe it's just newer that the mod. But for this price if you want to stack you tauren, go for it.
5/5 for 101 Team :)