[Jeff Brimble]

Good point there Jeff,  it was so slippery it allowed the male end to slide further in than normal.

Luverly jubilee 
Yep its when your up high and a few sections stick and you need 13ft arms to reach down two sections together that it becomes bxxxxy inconvenient, had it happen with the F16 at 75ft, so I wondered what I could do to prevent it and came up with the simple pvc tape buffer, which you can move as they wear. Yep they do stick and they do wear.

[windowswashed]

I wonder, if all else fails if two of those rubber wrenches could be used, you know the sort that open jars for old people? The only problem would be that the cam action could crush the section as they may be self tightening?
Don't tell anyone I told you just in case it doesn't work  

Doesn't work, tried it myself on two sections that had stuck together.

Could possibly try inserting a slightly smaller diameter pole inside the largest section that's jammed. One person holding the SL pole and yourself hitting a piece of wood placed over the spare pole (not the SL pole) to possibly free the jammed sections as a last resort if everything fails.

[windowswashed]

The two best recommendations prior to using the SL pole is put some electricians tape around the joints where they sit inside the pole before and the other is to wipe dry any joint sections if it's raining prior to assembling for use so they don't get jammed.