David P Bird wrote : In a Junior Exocet the target cells always occupy the same band of boxes as the base cells, whereas for a Senior Exocet they don't.
I thought my memory was playing tricks on me when I read this. I've always been under the impression that an Exocet was Junior when the pattern was contained in a single band and
the proof that each digit must occupy at least one Target cell was done by showing that in the S cells, each digit can be covered by two straight lines. If any digit requires some other method of proof then the Exocet is not a Junior, it's just an Exocet in the more general sense (not a "Senior" - just an Exocet).
Well that's been the way I've been thinking for about 3 years. To see whether my memory was playing tricks one me, I've just made a search of the earliest reference to an Exocet being described as "Junior".
As far as I can see this was first made by one David P Bird on Thursday April 12th, 2012 AD at 7:47 pm. Here is a link to the relevant post http://forum.enjoysudoku.com/post216841.html?hilit=Junior%20Exocet#p216841
This seems to support my way of thinking. Perhaps your thinking has changed in the intervening years but I can't remember when/if you extended the use of the term "Junior" to cover any Exocet with Base and Target cells in a single band.
Not that this is important, it's only a label, but it's nice if we can agree on terminology. Maybe this history is worth a mention in the Compendium 02 definition file.