BUY THE NEW GARDINER CLAMPS!it will be like a new pole mate.itll take you an hour to do.the clamps come off easily with a hacksaw and a screwdriver.
there is a video on the gardiner website about how to go about changing clamps.re glueing etc.
i upgraded all my clamps on my 3 poles.took me 3 hours altogether.then i left them overnight to dry.
they now grip firmly and tightly no matter where i clamp the sections.previously all 3 poles were spinning on the top 3 sections.magic!