I have a problem that I haven't been able to solve since starting with Solidworks 10 years ago. I often re-use sketches like the one below for the path of a "Cut Sweep" to cut a slot through a block. The only thing I change from job to job would be the dimensions at the top and bottom. The lines are connected with "Tangent Arcs." I can change the locations and keep all the tangencies until the lines go beyond 180 degree, then the arc does a loop like the second sketch. This causes the feature to crash, and I have to erase the loop and re-draw the arc correctly. Does anybody have an idea to create a "smart fillet" that knows to flip to the other side when two lines go beyond 180 degree?