I have a bone stock 72 Fish and I am looking at the ratcheting block for the main sheet. Saw a couple of posts but not really sure what to do other than not want to put sheet under that little hook
this is my preferred setup: a Harken 2135 (57mm carboratchet block) , with or without the Harken H150 cam cleat installed where the ol' hook is right now.
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I didn't bother installing the cam cleat on my newer Sunfish, though, and find it works just fine without it.
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cheers,
tag (my2fish)
Since you intend only to replace or supplement the hook, a ratcheting block would be an expensive alternative to a non-ratcheting block. If you add the "stand-up spring", that replacement block becomes even more expensive.
As a favor to the lender of my borrowed Sunfish of last October, I'm repairing his cam-cleat and (missing) block with a new eyestrap and a spare, well-used—but otherwise excellent, Schaefer®—non-ratcheting block.
(The U-shaped clip is in place to open enough space for S/S pop-rivets).