Thanks for the information about the Rockford screws. From what I read before buying the IH, I was fairly certain that some good quality rolled screws would be better than what I really needed. (And I totally agree that 'quality' in ball screws depends more on the manufacturer than it does on the advertising department of the vendor
Now that we know what 'can' be expected, is there anyone willing to go an record and say what accuracy they're 'getting' with their IH milled CNCed with Aarons kit?
(My mill is the latest one offered by IH. It has the ground ways and other enhancements that are listed on the IH web site. In all reality, it is a very impressive machine.)