I use vaseline instead of the spray, I find it lasts longer.
Be careful when you push the poles together, do not ram them together, instead let gravity do its job.
Also try to kept the ends dry, if water gets on them the poles jam together.
If they do jam, lightly turn one pole clockwise while you turn the other one anti clockwise.
If you are using them at 30' plus, get yourself a golf trolley and attaced either a bag, or what I do is I have 6 drain pipes that are 5' long, they are taped together, I then place this on the golf trolley instead of the bag.
The when you are extending or breaking the pole down you place the pole sections in the drain pipes, you do not want you sections being blown all of the place if you drop them on the ground.