I don't have access to the UKMET surface maps, but the Euro's appeared weaker at the surface over the last few runs. The 00z basically gets the rain through the metro around late morning on Friday. I'm just a casual lurker who mostly follows winter storms, so definitely outside my comfort zone. That said, curious what signals you see that would favor rain continuing into Saturday.
I have a selfish reason for needing this rain to get out of here as soon as possible, so I am also biased and rooting hard for at least a model blend of the GFS/EURO