Speed-system line replacement
How to replace a speed-system line with a new one (thick)
Sometimes it is necessary to exchange speed-system line for a new one. You can do it yourself, as shown here: english version.pdf 
How to replace speed-system line of older type (thin)
When a line of older type (thin) breaks, attaching hooks to the new one can be troublesome. Thanks to Clive Bunce there is some guidance here .
