Here is the photo's as discussed

Yes, I had one of those, there seems to have been a bad batch in Oz, Ian Fox was very good to assist to replace

Crickey! Hope you can get a replacement.

Wonder where these are made?

yes this happened to me also , and i know a few others over here in holland who had the same problem!

I've got a few C3 Venoms including a 42 but they look nothing like this Drake, are they same design but different factories, just wondering

Yes Designed by C3 but not made by them.
The Drakes versions are not G10 like the C3 ones.

Thanks Vando, my Venom's are going great

the 2011 version was made of g10 ,

They are a laminated glass fin, dont know what kind of resin. My first 42 split in half after clipping the bottom, the second delaminated after hitting a sand bank. Ian has replaced it with a C3 Venom which I love ofcourse They have obviously had some factory issues, the fins seemed to perform OK.