When I use DC42 FW the problem go's away. Its just the RepRpPro FW from the master branch. Note - I think this is the issue I have been having all along. Its just gotten more defined
The movement problems, particularly with Z, have largely been resolved with post-0.65e firmware. We're currently testing 0.78 (in the 'test' branch), which will soon be pushed to master.
When I use DC42 FW the problem go's away. Its just the RepRpPro FW from the master branch. Note - I think this is the issue I have been having all along. Its just gotten more defined