I am in the process of setting up my 240,which I bought from a 3rd party,no contact with previous owner. The mast has a vinyl coated cable as a topping lift ,ends in an eye,and is about 2 ft too short. I also own a Macgregor 26, and I have a rope which I have adjusted for proper boom height with sail down and it never binds at all while sailing. How should I set up this extension,and why didn't they just make it proper length from factory?