Lurking, yes it was, the base PRO told me that after a long hard think they tried it out once but used OV-10s from Sembach up the road, rather than the F-4s that were then based there. Don't know if the F-4s ever used it afterwards. This was in about 1981-82 ish.
Harriers operated from hides in Watton MQs once (Ex Big T) but that was short lived after some garage doors were blown in and the roofs were then blown off. Back to muddy, woody hides then.