Usual advice - go and speak to the controllers and ask what they do and whether something went awry today.
It's not an uncommon procedure but there's not a lot of guidance to controllers on how to do it - and probably less for pilots. When I first went yo an airport where it was done I went and spoke to some instructors and pilots to see what worked for them - general consensus seemed to be thay they wanted to be on a closing heading of 30 deg or less (ideally 15-20 deg) at the level assigned for the end of the base turn or whatever, and at a greater range than the base turn ended - final reques was a range check when I turned them towards the FAT. All of that is pretty easy to accommodate - certainly in comarison to trying to vector and sequence other traffic around a procedural approach!