I agree with Peter. The centerboards are not that heavy so you don't need the extreme strength of dyneema. What you really need are chafe resistance, a good feel to the hand and a solid catch on the cleat. I think the traditional braided line works well for each of those requirements. Mary Lou
ex-Rhodes 22
now Rosborough RF-246

On Fri, 15 Jul 2022 18:20:20 -0700
  Peter Nyberg <peter at sunnybeeches.com>  wrote:
> I know Dyneema is very strong and has low stretch, which 
>makes it an excellent choice for many applications. But 
>these attributes don't seem all that relevant in this 
>instance.  So, I'd be careful in leaping to the 
>conclusion that it would be the best choice for a 
>centerboard pendant.  
> 
> Not that I have any idea what the best choice of 
>material would be.
> 
> --Peter