Has anyone tried this configuration on the XH A1?

I'm talking about the 60cm long rods found here Cinevate Inc. (http://www.cinevate.com/catalog/product_info.php?products_id=80&osCsid=4e2038a6833af904211796ca91f29cbb)

I plan on sticking the Letus Elite on this and to cap it off, the Redrock microMattebox found here microMatteBox Deluxe Bundle (http://shopping.netsuite.com/s.nl/c.472981/it.A/id.553/.f?sc=2&category=864)

I heard the Redrock microMattebox is excellent, only it is very heavy. Are the Proteus rails suitable for the Letus Elite plus this Mattebox do you think?

Chris

I do not use their Proteus baseplate system, but I do have a set of the 60cm solid carbon fiber rails that have held up well with my setup.