Thanks for the ping FRiend...have to give it thought tomorrow...head is on crooked right now...:)
Found an interesting article at http://www.vesselofinterest.com/2017/06/mapping-acx-crystals-collision-with-uss.html...
Good data source, but disagree with some conclusions...
Lots more ready to post when/if Openurmind replies...
T'morrow...
TXnMA