Hi, Trayc,
Certainly, Wonderful Land was the last Shadows record released before Jet left the group. It was released in February 1962 and he left in April, whilst WL was somewhere around number one in the charts.
However, Wonderful Land was recorded on 12th May 1961 and the Shadows made many other recordings with Jet (and some with Tony) after that date, including The Savage and Peace Pipe (the single before WL) and several tracks from the group's debut album "The Shadows".
The first recording made after Jet left (and therefore featuring Licorice Locking) was All Day, later released as the B-side to Dance On!. This was on 27th April.
There is a lot more such information available in the late Roberto Pistolesi's painstaking EMI recording database - of which some of us have copies.
Best wishes,
JN


