Well for those wondering. I mounted it into the rails and I must say just moving it around by hand I can tell this version is much more rigid. I had the camaro rigidity mod added to mine and there was still fair amount of play forwards and backwards on each axis. This version still has a bit of play but noticeably less then V1 with the add on. I also extended the Z all the way down and tried pushing and pulling on it. This is probably the largest improvement on the is design… It was also noticeably stronger then V1. I cannot wait till I get this moving. Unfortunately my time available to work on this right now is almost non existent.