Spoke too soon.... lol
Left the vehicle alone for quite some time now - rechecked after 24hrs and things have moved on a bit.
10am + 1DAY FL= 41cm (-3cm) FR=42cm (- 4cm)
10am + 1DAY RL= 42cm (-4cm) RR=42cm (- 4cm)
Although the rears have more loss - I've just got a nearly feeling its may be...