[C320-list] Backstay Adjuster blocks

[whmorack]

Hello everyone!

I'm looking into adding a backstay adjuster to Fat Cat (hull # 1058), and my 
question is will the Harken 308 wire blocks work on my 1/4 inch backstay 
lower legs? Harken says the blocks are for max line of 1/4 inch, and max 
wire of 3/16 inch. But I am sure I have seen photos on the 320 website 
useing these blocks.

Did older 320's have smaller wire for the backstay lower legs?

Thanks,

Bill Morack

Catalina 320 "Fat Cat" hull # 1058