I am confused with the pin to pin dimension
On the J30 site / principal dimensions it states the headstay length as 35ft 6in (that's why I had the new forestay + furler made to this length .... eye to eye )
And I have seen other specs with 35ft 10 1/2in to the plate (not clevis pin)
And the UK guide says the length from the jib halyard to the hook is 35ft 2in

What is the correct eye to eye dimension?