Forestay diameter- Profurl spec vs. Catalina spec.

[Ken Heyman]

I recently purchased a Profurl C320 furler.
The forestay diameter specified in the Profurl manual is 9/32.  The Catalina specification for a tall rig forestay a is 5/16(10/32).  I called Catalina to discuss this and while the rep and I believe that the small differential isn't likely to prove unsafe, based on the conditions I sail in while exercising a conservative sailing philosophy----there are no guaranteees. I also called Profurl and they confirmed that 9/32 is the max diameter. Im planning on researching the breaking strength differential.
I'm curious if anyone with a Profurl  has encountered the same issue ?
Thanks much,
Ken

[patrice]

Hi Ken,
I would think that the max forestay diameter is given in reference to the bushing  internal diameter.
The bushing that goes jnside the furler extrusion.
The bushing are design to fit inside the extrusion and center the forestay cable.   Also turn on it as you unfurl or furl the headsail.
If you install on a bigger diameter forestay, the bushing will not turn freely as it should, but clamp on it.

This is my understanding.