Hi David
Ian Davies has drawn my attention to a problem you have with your Venom.
The Venom that you have was built from a Hull that I supplied to him and is the only one that was not built by me. Although I cannot be sure of the details I am fairly certain that John White used the same fin/lead as I did although it looks as though it was put together slightly differently.
For all of the Venoms that I built, the carbon fin came from David Creed in the Wirral and the lead was from Peter Wiles of P J Sails in Poole. The lead was modified from the one that he used on the "SWEET" radio A but it needs lightening considerably.
I'm not sure how John attached the fin to the Hull but it looks different to the way I used to do it and, without seeing the Hull and fin it is difficult to come up with any suggestion regarding any repair. However, would think that it would be better to use the fin and lead that you already have rather than trying a replacement which could be somewhat expensive.
Hope that this helps
David Munro