You’ve got a couple of issue with your model.
Firstly the top of your cylinder is somehow slightly off axis, so the follow me is skewd.
Also you Profile face is off center.
Then as was mention above by @slbaumgartner you need to use the Dave Method to upscale your model for editing, as you are working at sizes that can fail in SU.
Here is a quick example of what I mean with your model. Notice how edits in he big version are repeated in the small version, and you can delete the big one when finished.
