Table tags in distances are great for parcel data, although when using the label lines/curves to layout concrete curb it's not so helpful.
We use R1,R2,R3...labels on curves and create curve schedules for the plans, but label the actual segmental distance for lines and do not create a schedule for line segments.
The problem is the R table tags are offset by the line segment table tags increment, leaving radius tag numbers unused and causing lots of confusion.
Using C3D 2010 update 1