Glen Jackson has some unfinished business to attend to on behalf of Saracens before he heads home to take up his new career in the game.
In a rare case of already doing the jobs of both the poacher and game keeper in tandem, New Zealander Jackson insists "I have a very important half year of rugby to come" before he concentrates on developing his future career with the whistle Down Under.
Jackson is already well down the refereeing road but as Saracens have contested European semi-finals for the last three seasons, going within touching distance of a final appearance before falling short by one, two and three points, he is determined they can go that final stage.
"It would be good to go one step further after losing by two points to Munster in the Heineken Cup semis and then going down in two tough and tight Amlin semis against Bath and Northampton Saints," said Jackson, who has scored 405 points in 30 European matches for Sarries.
"We have always known this is a tough competition to win but doing just that is something we have talked about - although with only the five Pool winners qualifying for the quarter-finals this time that will make it even tougher.
"And while we don't know that much about Castres - aside of knowing that they are having a great domestic season, that they are right up there at the top in the Top 14, and also that they recruited well in the summer - we will have a closer look at them this week.
"We are both right in contention in the Pool so we know it is going to be extremely intense over there and that makes this first leg super important. Because, if we can win over there, they may decide to adopt a different approach in the return leg the following weekend.
"Our forwards are going very well - Schalk Brits in particular has proved a fantastic signing for us - so we are playing a fairly basic game with field position being all important."
An eight-point defeat in Toulon was a major setback for Saracens, missing out on a losing bonus by just a point, and Jackson accepts that could be critical.
"We probably did not deserve a losing bonus point at Toulon, and that has made the job harder, so it is up to us to deny them anything when they come over next month," he said.
"As for me changing venue, as I call it, the refereeing is ticking along nicely - I have done University and Schools games - and I am looking forward to the change when it comes. "But before then there is plenty to do for Saracens."
Finals Edition: Listen to the best guide to the European Rugby Cup Finals weekend in Dublin, which sees Leinster Rugby take on Stade Francais Paris at the RDS on Friday night in the Amlin Challenge Cup Final and then ASM Clermont Auvergne tackle Toulon in an all-French affair at the Aviva Stadium on Saturday.