I discovered that LeadInOutDressup does not work at all for circular paths. What it does depends on the "Style" choice, however it's always badly wrong. That's very unfortunate to me, it's a feature that I would greatly appreciate.
Aside of that, it would be very useful to be able to choose the points where to lead in/out, in order to eliminate tool marks.
I attach a tiny test project file and a window capture, I hope that this will be improved.
OS: Mac OS X
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.13976 (Git)
Build type: Release
Branch: (HEAD detached at fae0de5)
Python version: 2.7.15
Qt version: 5.11.0
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/Switzerland (en_CH)