HS—
There are NO BLOCKS MOUNTED AT THE GOOSENECK. The only blocks I have at the gooseneck are the four that were integral to the boom itself. One is the outhaul line, the other three are reefing lines for the three clew reefing cringles.
This is why I say that a photo of the gooseneck is less than useful—it is completely stock.
The one change I did make to the boom was to remove the internal block and tackle for the outhaul, which freed up one sheave so that I could run the third reefing line through it instead.
If I were using a single-line reefing system, instead of a double-line reefing system, I would still not have any blocks mounted at the boom's gooseneck, since I could run the lines for the reefing through the blocks the other direction, so that they'd go up to the tack reefing cringles instead of down to the mast-base turning blocks.
If your boom doesn't have internal sheaves, then you'll probably want to mount cheekblocks on the side to allow the reefing lines to come forward along the boom and then to turn them down to the turning blocks at the base of the mast.
I have seen a few different set ups at the base of the mast. I did look at your site.
What type of blocks are on the gooseneck and how are they moutned for each line? Are they above one another or all beside each other, or a combination? Are they mounted on the mast or mounted on the boom or a combination of the two?
I have looked at a lot of boats at my marina and the other marina I was at. I can see how they led their lines, but they all had covers on the main sails that covered the gooseneck so I couldn't see that part.