Depends on what you are flying and what's in front; from personal and terrified experience if you are approaching in an Auster at least 2 minutes (ie plenty of room) behind a fastish jet (think 1960s) at Shawbury (with PPO) and do not wish to be rolled 90++ degrees to starboard at about 500 feet AAL, you do an an immediate turn either way and rejoin the base leg 5 minutes later.
As it was I got away with it, just, but needed new underwear.