Picnic Cat Upgrades  Posted by: George Haycraft, Picnic Cat ere's what I (George Haycraft) did with PC#29. I replaced all the blocks with Harken Big Bullet ball bearing blocks  for 3/8" line. Mine came standard with non-ball bearing blocks for 1/4" line. With the 3/8" halyards supplied, there  was excess friction at all the blocks. This freed up things very nicely. Next, I removed the gaff end fitting and replaced it  with a fitting identical to the boom, the one with the ring on the bottom. That got rid of the throat fitting with the rod and  loop sticking up, which had been bent by the previous owner. Using a loop of 5/16" line fastened to the ring below, I added  a Harken block above the gaff. I also added an eye strap opposite the throat turning block up the mast. These additions  allowed me to rig a 2:1 throat halyard, the same purchase as the peak halyard and the boom downhaul.  H  65