Mr Lander, you are a star! I am going to have to buy that book. I dipped into the Library copy it when looking for JB Shepherds career but I need my own
He obviously was shot down pretty quickly because his recovery lasted six weeks, so his service with 7 OTU must have begun around mid-July. I am going to look at Peter Ayerst's bio for some colour on the unit (Le Roux isn't mentioned according to the index). He obviously was an instructor after he converted although a few days in the Battle of France doesn't give me confidence he could impart much about operational service.
best regards
Keith