Is anyone using their 170 with the Chrosziel 450 mattebox for the HVX200? Seems like the tripod mounting holes on the bottom of the HPX are so far off center that my mattebox won't line up. This is especially frustrating given the cost of the Chrosziel. I have a Zacuto baseplate for my Letus rig but prefer to use the lighter Chrosziel plate when not using the Letus. Any ideas?