2:1 Spinnaker halyard and stand up lead block?

I've recently had a failure of Spinnaker Halyard Sheave box and Sheave.  (part number if anyone is curious is Selden 505-068-10.  one thing to note from the Selden brochure for this part: C90 kit* (composite) is the Asterisk: Spinnaker halyard/lift box; always combine with halyard lead or lead block.

I've got 2 questions:

Does anyone have this setup on their 505?   If so, do you have a photo?

Either with or without a 2:1 halyard, are folks using the "Forestay fitting incl. lead block with stand-up spring" . shown on the Selden brochure on page 25?

http://www.seldenmast.com/files/excerpts/595-808-E-24-31.pdf