I have a telescoping whisker pole. It has advantages and disadvantages. On the good side, I can adjust the length as needed, I use a different length for broad reaching than I do for running, and it works for my jib, genoa, and asym. spinnaker. It collapses for easier storage. On the bad side, the twist lock isn't always reliable, if you don't set it tight it might slip, too tight and it is hard to undo. I suspect it is weaker than a one piece pole. Mine has plastic clips at the end which aren't the smoothest or most reliable things, they are often the cause and target of much foul language.