The lazy engineer in me has become a little too dependent on upverter and they have recently hosed me with their major system update that left several of my projects stranded, so I am finally making the long overdue effort to wean myself off and switch to KiCad.
One of the techniques I want to use is curved traces which should make the impedance more consistent, especially since I won't necessarily be able to hit it perfectly. I discovered that KiCad does not support curved traces, but fortunately Seth Hillbrand presented a technique to work around this at KiCon. It is a bit of a kludge and a little painful but usable for the number of corners I need. It sounds like real support for curved traces is coming to KiCad, so we shouldn't need to do this much longer.