MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I'll jump in and second that! I got one and switched to a three point Y Axis bearing setup and it eliminated a lot of binding present with four bearings, and DID improved the leveling, but I still had some leveling problems.
Then I went to a 3 point leveling system on the bed and it totally handled my nightmare 1st layer issues. Just dump the back right corner thumbscrew assembly. I discussed it here: https://www.thingiverse.com/groups/i3/topic:19008
That, combined with this plate, gave me a dead level bed. Recommended.