To remove the pole from the mandrel, when it comes out from the oven, we run cold water down the inside to shrink the mandrel quickly. It might be worth trying.
We use a vice to trap the outer taper then use a winch with a 1.5 ton pull to remove the mandrel, so a few heavy taps shouldn't damage the carbon fibre.
Just as a piece of information, I have no doubt that after six months of testing we have developed the non jamming tapered carbon fibre pole.
It is not for sale, we are still deciding whether to patent it.
I have no doubt that it will be a huge game changer in this industry just as the downpipe clearer will be.