There had been some changes in the medical setup by the time that the “Johnston FST” arrived in April 1971
Much of that change was driven by the difficulty of finding trained staff to run the FST. Anaesthetists were especially hard to come by for a variety of reasons.

• There had been an increase in size from 10 to 13 members
• The subsequent FSTs were gathered together from hospitals in both the UK and BAOR. The training and experience of the individual members, some of whom knew each other, was very varied. 
• The length of  Tour rose from three to five months.