It's not a bowline.  It's an alpine butterfly.  You have to see it in action to 
understand the physics but until then you're gonna have to take my word.

Realize that the butterfly is made in the middle of a single line the halves of 
which are led aft as port and stbd sheets.  The only best way I can explain it 
is that the working sheet pulls the butterfly in such away that it pivots to 
create a fairlead across the shrouds and stays.

Josh

Jun 17, 2022 08:46:30 Matthew via CnC-List <cnc-list@cnc-list.com>:

> Thanks, Josh.  The photo shows a soft shackle tied to a genny sheet with a 
> bowline (or what appears to be a bowline).  How does this configuration solve 
> the problem of the bowline getting hung up on stays when tacking a 150 genny?
> 
> *From:* Josh via CnC-List <cnc-list@cnc-list.com>
> *Sent:* Friday, June 17, 2022 1:44 AM
> *To:* Stus-List <cnc-list@cnc-list.com>
> *Cc:* Josh <muckl...@gmail.com>
> *Subject:* Stus-List Re: Genoa sheets catch on shrouds
> 
> https://stingysailor.com/2015/06/27/diy-soft-shackles-for-quick-and-easy-headsail-changes-2/
> 
> The alpine butterfly is the single best improvement for me.
> 
> Josh Muckley
> S/V Sea Hawk
> 1980 C&C 37+
> Solomons, MD
> 
> Jun 16, 2022 13:32:30 David Knecht via CnC-List <cnc-list@cnc-list.com>:
> 
> What have people found to be the best way to keep the genoa sheet attachment 
> from catching on the shrouds during a tack?  I use a dyneema soft shackle to 
> attach the sheets to the clew, but that has not solved the problem over 
> knots.  Thanks- Dave
> 
> S/V Aries
> 
> 1990 C&C 34+
> 
> New London, CT
> 
> 
> [cid:image001.png@01D88226.AF188EE0]
> 

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