Very helpful discussion here!
Last year I had been working through a similiar question from one of the Radar Operator Handbooks. I'll have to find the battle problem to be absolutely sure, but I recall their procedure describing how own-ship becomes the (maneuvering) target vessel while the actual target remains stationary on the board. My brain groaned!
For some reason though, using the "match" function and multiple contact criteria to plot steerpoints never occured to me. I had been using a more cumbersome approach of nodes and time intervals, something like a table of values until I found time values that jibed with each other.
After reading this, everything is much more streamlined
