Again the end will have to be tucked inside the main body of the rope and secured in place. This method allows a wear resistant cover to be introduced over a polypropylene rope at the appropriate point, for example where a halyard regularly passes through a clutch. The neatest solution is also often the most difficult to execute, especially in the middle of a long length. By introducing an additional core into the rope it is easy to make it thicker while at the same time keeping the outer cover smooth and free running through blocks etc. If you can find a rigger who is prepared to do this kind of work it will often prove the best solution for spinnaker sheets and other lines where the change in diameter has to pass round a block.
Several manufacturers make rope where the thickness changes mid-length.
Extra yams are introduced at the weaving stage to make the rope thicker at one end than the other. These offer a very neat solution always provided you can buy the exact combination of lengths and thickness you require.