Success at last. After much head-scratching(no, I aint got lice!), took the aforementioned stuck sections down to one of our coaching sessions. Fortunately our ex-chairman was there who gave a masterclass in pole unjamming. It's probably a method familiar to alot of you but was a new one on me.
1/ Have a man on either end of the stuck sections pulling (not twisting as that apparently locks it up more).
2/ A third man goes in the middle and grasps either side of the joint.
3/The third man then rotates the pole in a circular motion, which effectively puts a bend in the pole.
4/The joint works it way loose.
5/Sink to knees & praise god
6/Clean male/female joints
7/Buy ex-chairman pint at earliest opportunity
And of course thank fellow MDs for their advice on the matter
Dave@Brynmill&DistrictAC