Thank you - blog entry is very helpful on the construction.Hi Tom,
Yes, the working end of the topping lift is standard double braid--that is, where it exits the boom to be cleated. The 40' TL itself is 1/4" Spectra, and the internal portion (replacing the wire leader) is 3/16th Spectra. Blog entry.
The topping lift cleats on the boom, I rarely have to adjust it.